Phone Number Standards

This guide details Afghanistan phone number formats (+93), validation rules, and area codes (20-69). Learn mobile (07X XXXXXXX), landline (0AA XXXXXX) patterns with regex examples. Includes JavaScript validation snippets and error handling for robust implementations.

Understand Albania's (+355) phone number system: formats, area/operator codes (2-5 digits), & validation. Includes geographic (0AA XXX XXXX) & mobile (06X XXX XXXX) patterns. Essential for developers needing E.164 formatting & regex for validation; covers toll-free (0800) & premium (0900) services.

Explore Algeria's phone number system: format (+213 XX XXXXXXX), area codes, and validation. Implement robust regex (e.g., mobile: ^\+213(5[4-6]|6[5-7]|7[7-9])\d{7}$) for accurate validation. Includes formatting examples and dialing procedures for developers.

Explore American Samoa's (+1 684) phone number formats, including landline ([2-9]XX XXXX) & mobile (7XX XXXX) patterns. Learn validation via regex (e.g., ^\+1 684...). Understand dialing, NANP, & FCC regulations. Ideal for developers needing number parsing or validation logic.

Andorra phone number deep-dive: format (+376), validation, and structure. Learn fixed-line (7/8XXXXX), mobile (6XX XXXX), & special service number patterns. Includes regex for validation and E.164 compliance details, crucial for developers integrating Andorran numbers.

Explore Angola's phone number system: formats, area codes, & validation. Understand 9-digit landline (2X XXXXXXX) & mobile (9[1-9]XXXXXXX) patterns. Includes regex for validation and E.164 formatting guidance.

Anguilla phone number deep-dive: formats, area code (264), & validation. Learn E.164 normalization, NANP compliance, & mobile/landline regex. Includes MNP details & examples.

Explore Antigua and Barbuda phone number formats (+1 268): landline (46X), mobile (464, 7XX, 5XX). Includes validation regex, E.164 format, and number portability. Implement robust validation with JavaScript examples and understand the NANP regulatory compliance. Covers network infrastructure, emergency numbers, and developer best practices.

Understand Argentina's phone number system: formats, area codes, & validation. Covers E.164 structure, landline/mobile prefixes (+54 9), & regex validation. Learn the 10-digit rule and ENACOM regulations. Includes JavaScript validation examples.

Comprehensive guide to Armenia phone number formats (+374): area codes, validation, and structure. Includes landline (010XXXXXX), mobile (0[33|41|...]XXXXXX) examples. Regex for validation, emergency numbers (101-104, 911), and PSRC compliance details provided.

Aruba phone number format deep dive: covers +297 country code, 7-digit local numbers, and dialing conventions. Includes regex for validation (e.g. ^5\d{6}$ landlines, ^800\d{4}$ toll-free). Understand mobile (290X{4}) vs landline (5X{6}) patterns and ITU-T E.164 compliance.

Explore Ascension Island phone number formats (+247): landline (6[2-467]XXX) & mobile (4XXX). Learn validation using regex, E.164 formatting, dialing codes, & database schema. Ensure correct implementation with this guide.

Explore Australia's phone number formats, area codes, and validation rules. Understand landline (02, 03, 07, 08), mobile (04XX XXX XXX), & toll-free (1800) patterns. Includes regex for validation & dialing procedures adhering to ITU-T E.164; crucial for developers.

Explore Austria's phone number format (+43): area codes, structure, and validation. Understand landline/mobile patterns (0664, 0676), regex (e.g. ^06[56789]\d{4,10}$), and dialing. Covers geographic, toll-free (0800), and premium numbers, plus number portability.

Explore Azerbaijan's phone number formats (+994) with this in-depth guide. Understand NSN structure (8-9 digits), area codes (Baku: 12, Ganja: 22), mobile prefixes (50, 51, 55). Includes regex patterns like ^\+994(12|22|36)\d{7}$ for validation.

Explore Bangladesh phone number formats (+880): structure, area codes, & validation. Understand 9-10 digit NSN, mobile (+8801[3-9]\d{8}$), fixed-line patterns (+880[2-9]\d{7,8}$). Includes dialing codes, BTRC regulation, & MNP insights.

Explore Barbados phone number formats (+1 246): NANP structure, area codes, and validation. Understand 7-digit subscriber numbers, dialing codes (011), and regex patterns. Includes toll-free (800), premium (900) examples, plus ITU-T E.164 compliance for telecom professionals.

Explore Belarus phone number formats (+375): structure, area/carrier codes, and validation. Understand landline (+375 17...), mobile (+375 29...), and toll-free formats. Includes regex for validation (e.g., ^\+375\s(29|33|44)\s\d{7}$). Perfect for developers needing E.164 compliance.

Explore Belgium's phone number formats (+32): landline (0XX XXX XXX), mobile (04XX XXX XXX), toll-free (0800 XXX XX). Includes regex for validation, dialing codes, and ITU E.164 compliance. Essential for developers needing accurate Belgian number handling.

Explore Belize phone number formats (+501): structure, dialing codes, & validation. Understand 7-digit numbering, landline (2[02]XXXX), mobile (6[0-35-7]XXXXX) patterns. Includes regex for developers & ITU-T E.164 compliance details.

Explore Benin's (+229) phone number formats, crucial for telecom professionals. Understand 8-digit structure, mobile (9,6,5,4XXXXXXX) & landline (2XXXXXXX) patterns. Includes regex for validation and ITU-T E.164 compliance insights.

Bermuda phone number guide: formats, area code (441), & validation. Covers landline (+1 441 292 XXXX), mobile (+1 441 334 XXXX) & toll-free (+1 800 XXX XXXX). Includes regex.

Bhutan phone number format (+975) explained: area codes, validation & dialing. Understand landline (2[3-6]XXXXXX), mobile (17[1-8]XXXXXX) patterns. Includes regex for validation and ITU-T E.164 compliance details.

Explore Bolivia's phone number formats (+591): landline (8-digit '0X XXX XXXX'), mobile ('6/7X XXX XXX'), & toll-free ('800 XXX XXXX'). Includes regex validation, dialing codes, ITU standards, and number portability. Essential for developers needing telecom data.

Explore Bonaire, Sint Eustatius, and Saba phone number formats (+599): landline (7 digits) & mobile (9 digits). Includes number structure, dialing codes, and validation regex (^+599[1-9]\d{6}$ for landlines). TRA regulations and ITU-T E.164 compliance covered.

Explore Bosnia & Herzegovina phone number formats (+387): area codes, landline/mobile structure, and validation. Includes regex patterns like ^6[0-9]{7}$ for mobile. Covers dialing codes, number portability since 2015, and CRA regulation. Ideal for developers needing 6-7 digit subscriber number details.

Explore Bosnia and Herzegovina phone number formats (+387): structure, area codes, and validation. Includes landline (0XX XXXXXX), mobile (06X XXXXXX) examples. Regex patterns provided for validation. Understand dialing rules, number portability, and RAK regulations. Ideal for developers needing E.164 compliance.

Explore Botswana phone number formats (+267): landline (2X XXXX), mobile (7[1-8]XXXXXX), toll-free (0800XXXX). Includes ITU-T E.164 standards, regex validation `/^7[1-8][0-9]{6}$/`, dialing codes, BOCRA oversight, and number portability for telecom professionals.

Explore Brazil's phone number formats (+55), area codes, and validation. Understand landline `(NN) NNNN-NNNN` vs. mobile `(NN) 9NNNN-NNNN` patterns. Includes regex for validation and dialing: e.g., `^\(?(1[1-9]...\)? ?9\d{4}-?\d{4}$` for mobile. Essential for developers needing E.164 compliance.

This guide details the British Indian Ocean Territory (+246) phone number format. Learn 7-digit structure, including geographic (37X{5}) and mobile (38X{5}) number patterns. Includes JavaScript regex validation examples and E.164 formatting for developers and telecom engineers.

This guide details British Virgin Islands (+1 284) phone number formats, crucial for developers integrating BVI telecom data. Learn NANP structure (NPA-NXX-XXXX), validation regex (e.g., /^1?(\+1)?284[2-9]\d{6}$/), number portability, and E.164 formatting for seamless application integration.

Explore Brunei (+673) phone number formats: landline (7 digits, 2/3 prefix), mobile (7-8 digits, 7/8 prefix). Includes regex for validation (/^[23]\d{6}$/). Covers dialing & ITU-T E.164.

Explore Bulgaria's phone number formats (+359): area codes, structure, and validation. Includes landline (0[2-9]X{5,7}), mobile (08[7-9]X{7}) regex. Examples: Sofia (02), Plovdiv (032). Covers dialing, portability since 2007, and CRC regulation. Ideal for developers needing accurate telecom data.

Explore Burkina Faso's phone number format (+226): an in-depth guide for developers. Understand 8-digit number structure ([2-7]XXXXXXX), landline (2XXXXXXX), mobile ([5-7]XXXXXXX). Includes regex for validation and dialing procedures. Follows ITU-T E.164; no number portability.

Explore Burundi's phone number formats (+257): structure, dialing codes, & validation. Understand landline (22XXXXXXX) & mobile (79/71XXXXXXX) patterns. Includes regex for validation, E.164 compliance, & telecom operator details. Ideal for developers needing number parsing logic.

Explore Cabo Verde's (+238) phone number system: formats, dialing codes, and validation. Understand landline (2[1-7]XXXXXX), mobile (9[1-9]XXXXX) & toll-free (800XXXX) structures. Includes regex for validation & ITU compliance details.

Explore Cambodian phone number validation: formats, area codes (+855), and regex. Learn mobile (01X), landline (0[2-4]), & special service number structures. Includes validation techniques, conversion to +855 international format, and data storage best practices. Ensure data integrity and regulatory compliance.

Explore Cameroon's phone number formats (+237): structure, dialing codes, & validation. Understand landline (2X XX XX XX), mobile (6X XX XX XX) patterns. Includes regex: `^2\d{7}$`, `^6\d{7}$` for validation. Learn about MNP and ITU-T E.164 compliance.

Explore Canada's phone number formats, area codes, and validation. Understand the +1 country code, 10-digit structure (NXX-NXX-XXXX), and dialing procedures. Includes regex for validation like ^\+1[2-9]\d{2}[2-9]\d{2}\d{4}$ and upcoming 559/357 overlays.

CAR phone number guide: formats, area codes, & validation. Understand +236 numbering: landline (21XXXXXX), mobile (7[024-7]XXXXXX), & premium (8776XXXX). Includes regex for validation.

Explore Chad's phone number formats (+235): validation (landline /^22\d{6}$/, mobile /^[679]\d{7}$/), emergency (112, 117, 118), int'l dialing (00/16 prefixes). Includes carrier codes and technical implementation.

Explore Chilean phone number formats (+56): structure, validation & dialing. Understand landline (2XXXXXXXX), mobile (9XXXXXXXX) & toll-free (800XXXXXX) patterns. Includes regex for validation & SUBTEL regulatory details.

Understand China's phone number formats (+86): landline (10-12 digits w/ 2-4 digit area codes like '10'), mobile (11 digits). Includes validation regex, dialing codes, & operator prefixes. Ideal for telecom engineers needing numbering plan details.

Explore Christmas Island phone number formats (+61): landline (8[1-9]XXXXXXX), mobile (4[0-9]XXXXXXX). Includes validation regex, dialing codes (0011), and ITU E.164 compliance. Essential for developers needing telecom specifics; e.g., validating '891234567' or '+61' handling.

Comprehensive guide to Cocos (Keeling) Islands phone numbers (+61): formats, area codes, & validation. Includes number structure (9 digits), regex (e.g. ^\+614\d{8}$), and dialing for landline/mobile. Conforms to ITU-T E.164; managed by ACMA.

Comoros phone number formats (+269) explained: structure, area codes, and validation. Learn the 7-digit NSN format, dialing codes (00 for international), and number types. Includes regex for validation: `/^\+269[3478]\d{6}$/` and JavaScript examples.

Explore Washington, D.C.'s area code 202 telecom infrastructure, covering 68.34 sq mi & 671,000+ residents. Understand the 771 overlay, mandatory 10-digit dialing since 2021, fiber optics, 5G, & regulatory compliance for secure government & diplomatic communication.

Understand Cook Islands phone number formats (+682) with this technical guide. Learn the 5-7 digit subscriber number structure, landline (2XXXX) & mobile patterns ([578]XXXX). Includes regex for validation: `/^[2-578]\d{4}$/`. No area codes used; adheres to ITU-T E.164.

Understand Costa Rica's +506 phone number format: an 8-digit closed system. Includes landline (2XXX-XXXX), mobile (8XXX-XXXX) examples, and VoIP (21XX-XXXX). Validate numbers using regex: `^2\d{7}$`, `^8\d{7}$`. Learn dialing procedures and number portability.

Explore Croatia's phone number formats (+385): area codes, landline (01 XXX XXXX), mobile (09X XXX XXX) structure, and dialing. Validate numbers using regex: `^0[1-9]\d{7}$`. Includes E.164, ITU-T E.123/E.164 standards, and HAKOM regulation details for telecom professionals.

Explore Cuba's phone number system: formats, dialing codes, & validation. Understand landline (7/8-digit, `[2-7]XXXXXXX`), mobile (`5XXXXXXX`) formats. Includes regex for validation & ITU-T E.164 compliance. Learn about +53 country code, prefixes, & telecom regulations.

Explore Curaçao's (+599) phone number formats: a technical guide for developers/telecom experts. Understand 7-digit number structure (NXX XXXX), dialing, and ITU-T E.164. Includes regex for validation (e.g. ^\+599 9[0-9]{2} [0-9]{4}$), operator ranges, and dialing procedures. No number portability.

Explore Cyprus phone number formats (+357): structure, dialing codes, and validation. Understand 8-digit number allocation, including geographic (2[2-6]XXXXXX) & mobile (9[6-7]XXXXXX). Includes regex for validation and ITU-T standards compliance.

Explore Czechia's (+420) phone number system: formats, area codes, & validation. Understand 9-digit structure, landline (2XX XXX XXX), mobile (60X/7XX XXX XXX) patterns. Includes regex for validation.

Explore Côte d'Ivoire's (+225) phone number system: formats, dialing codes, & validation. Understand 10-digit structure (XZABPQMCDU), mobile (01, 05, 07) vs. fixed-line (21, 25, 27). Includes regex: `^0[157]\d{8}$` & ARCEP regulatory details.

DRC phone number format guide: structure, area codes, validation. Covers landline (0X XXX XXXX), mobile (0XX XXX XXXX) formats. Includes regex (e.g. ^0[89]\d{8}$), dialing codes (+243), ITU-T E.164 adherence, and operator prefixes for parsing/validation.

Explore Denmark's phone number system (+45): 8-digit format, number categories (geographic, mobile, toll-free 80), and international dialing. Includes validation regex: `^[2-9]\d{7}$`. Learn number portability rules and emergency numbers like 112, 114. Essential for developers.

Understand Djibouti's (+253) phone number system: 8-digit formats for fixed (21X{6}) and mobile (77X{6}) lines. Includes number portability, dialing codes, and validation regex like ^\+25377\d{6}$. Conforms to ITU-T E.164.

Explore Dominica's (+1 767) phone number format: fixed-line (767-2XX-XXXX), mobile (767-[2-9]XX-XXXX). Includes validation regex (e.g., ^7672[0-9]{6}$), dialing codes, and operator ranges. Learn about number portability and the DTA regulatory body. Perfect for developers needing precise telecom data.

Explore the Dominican Republic's (+1) phone number format: a technical guide covering area codes (809, 829, 849), landline/mobile patterns, and validation. Includes regex for formats like +1 800-XXX-XXXX (toll-free) and dialing procedures, crucial for developers needing E.164 compliance.

Explore the E.164 standard for international phone numbers, crucial for global telecom interoperability. Learn E.164 structure: CC (1-3 digits), NDC, & SN. Validate numbers using regex: /^\+[1-9]\d{1,14}$/. Implement best practices & avoid common issues. Libraries like `phone` & `libphonenumber-js` covered.

Understand Ecuador phone number formats (+593): area/mobile codes, subscriber numbers, and validation. Includes E.164 format, regex for 7/8 digit validation, and landline (2-7) vs mobile (9X) prefixes. Essential for developers integrating Ecuadorian numbers; covers number portability.

Explore Egypt's phone number system: formats, area codes, and validation. Includes landline (Cairo '2', Alexandria '3'), mobile prefixes (Vodafone '10', Etisalat '11'). Covers ITU-T E.164 compliance, mobile number portability (MNP) & dialing guides. Essential for developers & telecom professionals.

Explore El Salvador's 8-digit phone number system (+503): formats, dialing, & validation. Understand landline (2XXXXXXX), mobile (6/7XXXXXXX) prefixes. Includes regex for validation & MNP insights.

Understand Equatorial Guinea's (+240) phone number system. This guide details formats (landline: 33[0-24-9]X[46]X{4}, mobile: 222/55X{6}), validation via regex, and network integration. Includes JavaScript validation code and regulatory insights for developers.

Understand Eritrean phone number formats (+291) with this technical guide. Learn landline (e.g., +291 1 XXXXXX for Asmara) & mobile (e.g., +291 7XX XXXX) patterns. Includes validation regex & formatting code for developers. Valid 7-digit numbers.

Explore Estonia phone number formats (+372): structure, validation, and implementation. Understand mobile (5XXX XXXX), landline (3XXX XXXX), & VoIP (6XXX XXXX) patterns. Includes regex for validation and E.164 storage best practices, plus portability & GDPR considerations for developers.

Eswatini phone number deep-dive: formats, area codes (+268), & validation. Learn mobile (7[6-9]\d{6}), landline (23[2-5]\d{6}), toll-free (0800\d{4}) patterns. Includes emergency numbers (999, 933, 977), regex & code examples for robust implementation.

Explore Ethiopia's phone number system: formats, area codes (Addis Ababa 011, Dire Dawa 025), and validation. Includes mobile (091x, 094x), fixed-line patterns, JavaScript regex examples. Essential for developers integrating with Ethiopian telecom services; covers Ethio Telecom, Safaricom, and emergency numbers (911).

Explore Falkland Islands phone number formats (+500): a technical guide for developers. Understand 5-digit number structure, Stanley's 2XXXX range, and mobile 5XXXX prefixes. Includes JavaScript validation regex and dialing codes for robust app integration.

Faroe Islands phone number deep-dive: formats, area codes (+298), & validation. Includes landline/mobile patterns (prefixes 2-4 vs. 5-9), emergency routing (112, 113, 1870), JavaScript validation examples, and telecom infrastructure details (4G/LTE 98% coverage).

Explore Fiji phone number formats (+679): a technical guide covering validation and structure. Understand 7-digit number ranges ([3-6] for fixed, [7-9] mobile), plus JavaScript validation. Essential for developers integrating Fiji telecom services.

Explore Finland phone number formats (+358): structure, area codes (e.g., Helsinki '09'), and validation. Includes mobile/landline regex, portability, and carrier codes (990-999). Learn to validate Finnish numbers with JavaScript examples and handle number portability.

Explore France's phone number system: formats (+33 X XX XX XX XX), validation rules, and ARCEP regulations. Understand geographic (01-05), mobile (06-07), and VoIP (09) number types. Includes JavaScript validation snippets and emergency numbers like 112 and 114.

Explore French Guiana's phone number system: formats, area codes (+594), & validation. Includes fixed-line (0594), mobile (0694) details, & regex examples. Learn E.164 standardization, number portability (RIO codes: PP-YYYYMMDD-NNNNN), & ARCEP compliance for developers.

This guide details French Polynesia's phone number formats, validation & implementation. Understand 8-digit number structure, including landline (4XXXXXXX) & mobile (8[7|9]XXXXXX). Includes regex for validation and E.164 storage best practices.

Validate Gabonese phone numbers (+241) using regex and E.164 format. Understand 9-digit structure post-April 2025, service type indicators (1,6,7), and ARCEP regulations. Includes Javascript examples for local/international format conversion and validation regex: ^(?:(?:\+|00)241|0)([1-7])\d{7}$.

Gambia phone number deep-dive: formats, validation, and telecom insights. Understand +220 number structure, including mobile (7-9XXXXXX) & landline (4-5XXXXXX). Implement E.164 validation using regex. Covers operator details and emergency number handling (1XX).

Explore Georgia's (+995) phone number formats, validation, and implementation. Understand landline (032, 043), mobile (5XX), & special numbers. Includes regex for validation & E.164 formatting. Essential for developers integrating Georgian numbers; covers number portability.

Explore Germany's phone number format (+49): area codes (2-5 digits), subscriber numbers (3-13 digits), and validation. Understand geographic (0XX[X]), mobile (01XX), and service numbers. Includes regex for validation and handling mobile number portability (MNP).

Explore Ghana's phone number system: formats, area codes (+233), & validation. Understand landline (0322001234), mobile (0241234567) patterns. Includes regex & JavaScript validation examples.

Explore Gibraltar's phone number formats (+350) with validation rules and regex. Understand landline (200, 222, 225 prefixes), mobile (5[4-8]XXXXXX), and special service numbers. Includes validation code and emergency number details (999, 112). Learn number portability and GRA regulations.

Explore Greece's phone number system (+30): architecture, CRDB, and EETT compliance. Learn number portability's 3-tier architecture. Includes API/DB integration, validation (<2 hours), porting (<3 days), and MSISDN format. Ideal for developers needing technical integration details.

Explore Greenland's phone number system (+299): format, validation, and dialing. Understand the 6-digit numbering plan, landline (1, 2, 3), mobile (4, 5) prefixes. Includes international calling (+299), ITU-T E.164 compliance, and JavaScript validation examples.

Understand Grenada phone number formats (+1 473) for reliable telecom integration. Learn landline (473-2XX-XXXX), mobile (473-4XX/5XX-XXXX) patterns and validation. Includes regex: `^473[45][0-9]{6}$`, portability, E.164 formatting, and security best practices.

Explore Guadeloupe phone number formats (+590) and validation. Understand landline (590), mobile (690) area codes. Includes regex validation `/^\+590(590|690|800|89\d)\d{6}$/`, dialing, number portability (10-day transfer), and database schema examples for developers.

This guide details Guam phone number formats (+1 671), validation, and dialing. Understand NANP structure, regex for validation (e.g., `^\+1 671 [2-9][0-9]{2} [0-9]{4}$`), number portability, and telecom operators. Includes E.164 compliance and porting timelines (1-4 days).

Explore Guatemala's phone number system: formats, area codes (+502), and validation. Understand landline (2XXXXXXX, 6XXXXXXX, 7XXXXXXX) & mobile (3-5XXXXXXX) patterns. Includes regex validation examples and regulatory insights.

Guernsey phone number deep-dive: formats, area code (1481), and validation. Learn landline (+44 1481 XXXXXX) & mobile (+44 7XXX XXXXXX) patterns. Includes JavaScript validation regex and dialing codes.

Explore Guinea's phone number system: formats (+224), area codes, & validation. Learn landline (3XXXXXXX) & mobile (6XXXXXXX) patterns. Includes JavaScript validation regex.

Explore Guinea-Bissau phone number formats (+245): an 8-digit system without area codes. Includes mobile (95/96/97XXXXXX), landline (44XXXXXX) patterns, and int'l dialing. Plus regex for validation and network coverage details for developers.

Explore Guyana phone number formats (+592): a technical guide covering 7-digit NSN structure, dialing codes, and validation. Includes regex for landline (2XXXXXX), mobile (6XXXXXX, 7[0-5]XXXXX), toll-free (800XXXX). Learn E.164 best practices.

Explore Haiti's phone number system (+509): formats, validation (regex: /^2[2-9]\d{5}$/, /^[34]\d{6}$/), and dialing. Covers landline (2[2-9]XXXXXX), mobile ([34]XXXXXX). Includes emergency numbers (114, 115, 116) and regulatory details for Haitian telecom.

Honduras phone number guide: formats, area codes (+504), & validation. Understand 8-digit NSN structure since 2004. Includes regex for landline (2XXX XXXX), mobile ([3,7-9]XXX XXXX), & toll-free (8002 XXXX) validation. E.164 storage & number portability details provided.

Explore Hong Kong phone number formats (+852): structure, area codes, and validation. Learn fixed-line (2/3 prefix), mobile (4-9 prefix) patterns, and number portability (MNP/FLNP). Includes a TypeScript validation example and regex for developers. OFCA oversight ensures compliance.

Explore Hungary's phone number formats, area codes, and validation rules. Understand geographic (06 1 XXX XXXX for Budapest) & mobile (+36 20/30/70) patterns. Includes regex for validation, AML emergency services details (≤ 50m accuracy), and NMHH compliance guidelines.

Understand Iceland's phone number system: format (+354), validation & structure. Covers 7-digit numbers, mobile (6/7/8XXXXXX), geographic (4/5XXXXXX). Includes regex for validation.

Explore India's phone number system: E.164 format (+91[1-9]\d{9}), validation (regex examples in Javascript), and area code usage. Includes emergency numbers (112, 100, 101), telecom market statistics ($48.61B revenue in 2025), and TRAI regulatory overview.

Guide to Indonesian phone number formats (+62): area codes, validation. Learn mobile/landline patterns, regex (e.g., `^08[1-9][0-9]\d{7,8}$`), error handling. Includes validation rules based on Kemenkominfo regulations. Essential for developers targeting Indonesia's growing telecom market (projected to reach $14.36B by 2029).

Explore Iran's phone number formats (+98): landline (021 XXXXXXXX), mobile (09XX XXXXXXX), MVNO (099X XXXXXXX). Includes area codes (e.g., Tehran: 021), premium-rate prefixes (909, 7020), plus validation regex and emergency numbers (110, 115, 125). Learn number structure and validation.

Comprehensive guide to Iraq phone number formats (+964): structure, validation, and dialing. Includes area codes (Baghdad '01', Basra '04'), mobile prefixes ('075', '077', '078', '079', '076'), and regex for developers. Learn landline (6-7 digits) and mobile (7 digits) validation.

Explore Ireland's phone number system: formats, area codes (+353), & validation. Includes landline (01, 021, 091 examples), mobile (08[3-9]XXXXXXX), & special service formats. Regex & formatting code snippets provided for robust validation. Learn E.164 storage & ComReg compliance.

Explore Isle of Man phone number formats (+44): validation, area codes (1624), and mobile prefixes (7624). Learn E.164 standards, regex for validation, and number portability nuances. Implement robust validation and avoid common pitfalls.

Explore Israeli phone number formats (+972): landline (02-XXXXXXX), mobile (05X-XXXXXXX). Understand area codes, validation with regex (e.g., /^0([2-9])\d{7}$/), and dialing rules. Learn to validate 7-8 digit subscriber numbers and handle international calls.

Comprehensive guide to Italy phone number formats (+39): landline (0xx XXXXXXX), mobile (3XY XXXXXXX), special services (800, 89X). Includes validation regex, E.164 formatting, number portability, and AGCOM database usage. Perfect for developers needing Italian number parsing/validation. 155 chars

This guide details Jamaica's phone number format (+1), area codes (876, 658), and validation. Learn E.164 normalization, regex for validation, and number portability. Includes Javascript examples and covers fixed-line/mobile patterns for developers needing precise telecom data.

Explore Japan's phone number system: formats, area codes, & validation. Understand `0XX-XXXX-XXXX` (geographic), `0Y0-XXXX-XXXX` (mobile) patterns. Includes carrier integration, E.164, number portability, SMS (Shift-JIS 70 char limit), emergency services (110, 119, 171) & validation best practices.

Explore Jersey phone number formats (+44): landline (01534 XXXXXX), mobile (07XXX XXXXXX), and special numbers (0800, 03XX, 09XX). Includes validation regex and calling codes. Learn number portability and telecom evolution impacting number handling.

Explore Jordan's (+962) phone number formats, validation rules, and telecom landscape. Understand mobile (07x) & landline patterns with regex examples. Learn TRC compliance for apps. Includes 911 emergency services & area codes (02, 03, 05, 06). Validate numbers effectively.

Explore Kazakhstan phone number formats (+7 & +997): structure, area codes (710-733 examples), and validation. Includes regex/JavaScript snippets for mobile (70[0-8], 77[1-8]) & landline. E.164 format & dual validation explained.

Explore Kenya's phone number system: formats, area codes (+254), & validation. Understand 9-digit NSN structure, landline (020, 041) & mobile prefixes (07, 01). Includes MNP, regex, & emergency number handling for robust telecom apps.

Kiribati phone number deep-dive: formats, validation & ITU-T E.164 compliance. Covers landline (+686[2-4]\d{4,5}), mobile (+6866\d{6}), & emergency (999). Includes JavaScript validation regex & CCK regulatory details.

Kosovo phone number deep-dive: format, area codes (+383), & validation. Understand 8-digit NSN structure, landline (38/39), mobile (43/44/45/49) prefixes. Includes regex for validation, number portability, and formatting best practices.

Validate Kuwaiti phone numbers with this guide, covering E.164 format, landline (2XXXXXXX), mobile (5/6/9XXXXXXX) & corporate (18XXXXX) patterns. Includes regex for validation, MNP handling, and CITRA compliance. Learn to sanitize input and handle +965.

Explore Kyrgyzstan phone number formats (+996): structure, area codes, & validation. Understand geographic (312 for Bishkek), mobile (7XX), & toll-free patterns. Includes E.164 storage, regex examples, and implementation for developers needing reliable Kyrgyz number handling.

Explore Laos phone number formats (+856) with this technical guide. Learn E.164 structure, landline (2X{7}), mobile (20[2-9]X{6,7}) patterns, & validation regex. Includes normalization and error handling for developers.

Explore Latvia's phone number system (+371): formats, validation & technical details. Understand 8-digit structure, mobile (2XXXXXXX), fixed-line (6XXXXXXX) patterns. Includes Javascript regex for validation and E.164 formatting. Learn about key operators and 5G deployment.

Comprehensive guide to Lebanon phone number formats (+961): structure, validation, and implementation. Includes landline/mobile prefixes (03, 70, 71, 01, 04-07, 09), regex for national/international formats, and number portability best practices. NSN length: 8 digits.

Lesotho phone number deep-dive: format, area codes (+266), & validation. Covers ITU-T E.164 structure, service type indicators (2=landline, 5/6=mobile, 8=toll-free), & regex. Includes Javascript validation examples and implementation guidelines.

Explore Liberia's phone number formats (+231), validation rules, and structure. Understand mobile (77/88X XXX XXXX), fixed-line (2X XXX XXXX) patterns. Includes regex for validation and E.164 best practices. Targetting Liberia's 4.77 million mobile connections.

Explore Libya's phone number formats (+218): structure, validation, and telecom infrastructure. Understand 8-9 digit NSN lengths, mobile prefixes (091-096), and landline area codes (2-8). Includes regex for validation and network considerations for developers.

This guide details Liechtenstein's phone number format (+423), structure, and validation. Learn number categories (landline 2XXXXXX, mobile 6/7XXXXXX), and regex for validation. Includes domestic/international calling codes and regulatory insights.

Lithuanian phone number format explained, covering the +370 country code and transition from '8' to '0' national prefix by 2025-12-01. Includes validation regex, Python examples, and handling 9-digit numbers during the dual prefix period. Learn about area codes and regulatory compliance.

Comprehensive guide to Luxembourg phone numbers (+352): formats, validation, and structure. Understand mobile (6/7 prefixes), toll-free (800), & premium (90) numbers. Includes JavaScript validation regex: `^(?:6[269][18]\d{6}|7[189]\d{6})$`. Learn number portability via GIE FNP.

Explore Madagascar's phone number system: formats, area codes (+261), & validation. Learn mobile (32, 33, 34 prefixes) & fixed-line (20 prefix) patterns. Includes validation regex `^3[2-4,7-9]\d{7}$`, emergency codes (17, 18, 124), and number portability insights.

Explore Malawi's phone number formats (+265): dialing codes, validation, and technical details. Understand mobile (088/099 prefixes) & landline patterns. Includes regex for validation and MNP insights, crucial for developers integrating with Malawi's telecom infrastructure. Emergency numbers: 997, 998, 999.

Explore Malaysia phone number formats (+60): validation regex, area/mobile prefixes. Understand fixed line (03-XXXX XXXX), mobile (01X-XXXX XXXX) patterns. Includes E.164 conversion and implementation for robust applications.

Understand Maldives phone number formats (+960) with this technical guide. Learn 7-digit number structure, validation using regex (e.g., ^[3|6|7|9]\d{6}$), and handle number portability. Includes number type prefixes (3, 6, 7, 9) and emergency codes (119, 102, 118).

Explore Mali phone number formats (+223): an in-depth guide covering landline (8 digits) & mobile (6/7/9 prefixes) dialing. Includes international call procedures (011/00 + 223), emergency numbers (112, 17, 15, 18), operator details (Orange, Malitel), and regulatory insights for developers.

Explore Malta phone number formats (+356): validation, dialing codes, & structure. Learn E.164 standard implementation, regex for pattern matching (e.g., mobile: ^(?:\+356)?[79]\d{7}$). Includes normalization JS code & error handling for robust applications.

Understand Marshall Islands phone number formats (+692): structure, validation, and implementation. Includes landline (2XX XXXX), mobile (3XX XXXX) examples. Learn regex for validation and E.164 formatting. Optimize apps for 4G/LTE, satellite latency (250-500ms), and bandwidth constraints.

Understand Martinique phone number formats (+596) for reliable application integration. Explore landline (596 3-7XXXXXXX) & mobile (696) patterns with validation regex. Includes number portability, formatting examples, and emergency number handling for developers. ARCEP regulatory context covered.

Explore Mauritania's (+222) phone number system: formats, validation, and implementation. Understand 8-digit NSN structure, landline (250, 451), & mobile prefixes. Includes JavaScript validation and formatting code snippets.

Explore Mauritius phone number formats (+230): validation rules, area codes, and technical implementation. Learn landline (2XXX XXXX), mobile (5XXX XXXX) & special service number regex. Includes E.164 normalization, MNP, ICTA compliance, and scalable database schema examples.

Explore Mayotte phone number formats (+262 country code) and validation techniques. Learn E.164 conversion, regex patterns (landline: 269, mobile: 639), and error handling. Includes JavaScript code snippets for formatting from local formats to +262XXXXXXXX.

Explore Mexico phone number formats (+52): validation, area codes (2-3 digits), & structure. Understand mobile ('1' identifier) vs. landline. Includes regex examples and 2019 reforms.

Explore Micronesia's (+691) phone number system: formats, validation, and dialing. Understand fixed-line (XXX XXXX) & mobile (7XX XXXX) patterns. Includes regex for validation and E.164 formatting best practices for developers. Learn about FSMTC compliance and future considerations.

Explore Minnesota's phone number system: formats, area codes, & validation. Understand NANP structure (+1 country code), number portability, & the 924 overlay (by 2025). Includes regex validation snippets & E.164 best practices; crucial for developers/telecom.

Explore Moldova's phone number system: formats (+373 country code), area codes (2X, 6X), & validation. Understand mobile/landline patterns, special services (800, 90X), & regex. Includes number portability, ANRCETI regulations, and JavaScript validation examples.

Explore Monaco phone number formats (+377): landline (9XXXXXXX), mobile (6XXXXXXX), toll-free (800XXXX). Includes validation regex, E.164 compliance, and telecom infrastructure details. Learn best practices for developers handling Monaco numbers and 5G network specifics with <10ms latency.

Explore Montenegro's phone number formats: area codes, mobile/landline patterns, and validation. Includes emergency numbers (112, 122, 123, 124, 129), prefixes (20, 30, 40, 50), operator codes (067, 068, 069), and JavaScript regex for validation. Number portability insights included.

Understand Montserrat phone number formats (+1-664) for telecom applications. Learn validation using regex (e.g., +1-664-49X-XXXX for mobile) & `libphonenumber-js`. Covers MNP impacts, NANP structure, & service types like landline (491-499 ranges) and toll-free (8XX prefixes).

Morocco phone number deep-dive: format, area codes, & validation. Learn 10-digit dialing rules, +212 international format, & emergency numbers (15, 19, 177). Includes VoIP & number portability (one-day porting).

Explore Mozambique phone number formats (+258): structure, validation, and implementation. Includes landline (2X) & mobile (8X) prefixes, regex for validation, and E.164 formatting. Covers operator codes (Vodacom 82/83, Movitel 84/85, Tmcel 86/87) and regulatory changes.

Explore Myanmar phone number formats (+95) with validation rules and area codes. Understand landline (e.g., Yangon '01'), mobile ('9' prefix), toll-free, & premium number patterns. Includes regex for validation, addressing 5-8 digit subscriber numbers.

Explore Namibia's phone number system (+264): formats, area codes, and validation. Understand landline (061 XXXXXX), mobile (081 XXXXXXX) & toll-free (080 XXXXXXX) patterns. Includes regex for validation: `^0[68]\d{7}$` and dialing rules for telecom experts.

Nauru phone number deep-dive: format (+674 XXX XXXX), validation, & implementation. Learn service prefixes (landline 444, mobile 555/666/88X), regex, & E.164 best practices. Includes JS validation snippets & telecom infrastructure overview. Target uptime: 98%.

Explore Nepal's phone number formats (+977): landline (0[1-9]X{7}), mobile (98[4-9]XXXXXX), toll-free (1660XXXXXXX). Includes area codes, dialing, and regex validation. Understand NSN (8-10 digits), ITU-T E.164 compliance, and operator number ranges. No MNP support.

This guide details Netherlands (+31) phone number formats, validation, and area codes. Learn landline (020, 010, 0111), mobile (06), toll-free (0800) patterns. Includes regex for validation and number portability insights.

Comprehensive guide to New Zealand phone number formats (+64): area codes, validation. Includes landline (03, 04), mobile (021, 022, 027), toll-free (0800) regex. Learn validation via `^0([34679])([2-9]\d{6})$`. Covers number portability & protected ranges.

Nicaragua phone number deep-dive: structure, validation & formatting. Understand +505 country code, landline (2XXXXXXX), mobile ([5|7|8]XXXXXXX) formats. Includes regex for validation, service prefixes, & TELCOR regulatory context. Ideal for developers needing robust number handling.

Comprehensive guide to Niger phone number formats (+227): structure, validation, and formatting. Includes regex for validation (e.g. `/^(\+227|00227)?[2-9]\d{7}$/`) and national/international formatting examples. Covers 8-digit number types, ARCEP compliance, and implementation best practices.

Comprehensive guide to Nigerian phone number formats (+234), area codes, and validation. Understand fixed-line (02 prefix), mobile (070, 080, 090, 091), & short codes. Includes regex for validation & E.164 storage best practices, plus MNP details.

Niue phone number format guide: understand +683 country code, 4-digit local numbers, and Telecom Niue's system. Includes landline (4XXX), mobile (5XXX) patterns, validation regex (e.g., ^[45]\d{3}$), E.164 storage, and international dialing. Ideal for developers integrating Niue SMS/voice.

Norfolk Island phone number guide: formats, area codes (+672), & validation. Understand landline (1[06|17|28|39]XXX) & mobile ((?:14|3[58])XXXX) patterns. Includes a JavaScript regex for validation and E.164 formatting details. Learn local number length rules (5-6 digits).

Explore North Korean phone number formats, area codes (2-7), and validation rules. Understand landline (6-7 digits) & mobile prefixes (191, 192, 195). Includes international (+850) dialing, restrictions, and network details like Koryolink 3G/Kangsong NET 4G. Ideal for developers needing telecom insights.

CNMI phone number deep-dive: format (+1-670-XXX-XXXX), validation (regex, Python examples), & E911. Covers NANP, carrier routing, & number portability. Includes exchange code rules (NXX ≠ N11) and emergency service implementation. Perfect for developers needing robust telecom solutions.

Explore Norway's phone number system: E.164 format (+47), 8-digit structure, and validation. Understand geographic/mobile number ranges (2X, 4X, 9X). Includes regex snippets for validation and details on emergency service (110, 112, 113) requirements & number portability (T+3/T+5).

Oman phone number format and validation explained, covering +968 country code, area codes, and dialing. Learn 8-digit number structure, MNP, and regex validation. Includes landline (2X) and mobile (9X) number patterns. Ideal for developers needing Omani number compliance.

Explore Pakistan's phone number formats (+92): validation, area codes, and emergency numbers (15, 1122, 16). Includes MNP regulations (5-day porting), special numbers, plus JavaScript validation snippets for developers. Essential for telecom app development.

Explore Palau's (+680) phone number system: formats, validation & telecom landscape. Understand the 7-digit structure, mobile prefix `488`, & regex `/^488\d{4}$/`. Includes PNCC infrastructure details.

Comprehensive guide to Palestine phone number formats (+970): validation, area codes, and structure. Includes mobile (56, 59), landline (2, 8), toll-free (1800) regex. E.164 format? Network variations (West Bank/Gaza)? Essential for developers integrating telecom services; avoid number format errors.

Implement robust PNG phone number validation. Understand +675 formats: landlines (3XX, 4XX, 5XX), mobile (7XX Digicel, 8XX Vodafone), & toll-free (1800). Includes regex patterns, sanitization, E.164 formatting, & NICTA compliance for reliable systems.

Paraguay phone number deep-dive: formats, area codes (+595), & validation. Understand landline ([2-8]XXXXXX), mobile (9[1-9]XXXXXXX) patterns. Includes regex for validation, number normalization, and portability considerations. Target Paraguay's telecom specifics.

Explore Peru phone number formats (+51): landline (0 + [Area Code] + [7 digits]), mobile (9 + [8 digits]). Includes validation regex (/^9\d{8}$/), dialing codes, and OSIPTEL regulations.

Explore Philippine phone number formats (+63), validation rules, and area codes. Understand MNP's impact, including 48-hour porting windows, and E.164 formatting. Includes updated regex for mobile/landline validation and best practices for developers handling 7/8 digit numbers.

Explore Poland's phone number system: formats, area codes, & validation. Understand landline (22 for Warsaw), mobile (starts 4-8), VoIP (39x) structure. Includes regex for validation and UKE regulations.

Explore Portugal phone number formats (+351): structure, validation & implementation. Understand 9-digit patterns, area/service codes (2/9/8/6), & E.164 compliance. Includes regex for landline (2X XXXXXXX), mobile (9X XXXXXXX) & portability best practices.

A technical guide to Puerto Rico phone number formats (+1 NANP): validation, area codes (787, 939), & implementation. Includes regex for landline/mobile validation like ^\+1(787|939)[2-9]\d{6}$. Learn number portability & disaster recovery for resilient systems.

Validate Qatar phone numbers (+974) with this technical guide. Learn the 8-digit format, landline (4xxxxxxx), mobile (3/5/6/7xxxxxxx) prefixes, & regex validation. Includes best practices for E.164 compliance & error handling.

Explore North Macedonia's (+389) phone number formats, including landline (0[2-4]XXXXXXXX) & mobile (07XXXXXXXXX) patterns. Learn validation using regex & E.164 standards. Includes area codes, operator prefixes, number portability, and AEK regulatory details for developers. Essential for telecom integration.

Explore the Republic of the Congo's (+242) phone number formats, including landline (222[1-5][0-9]{5}) and mobile (06[1-5][0-9]{6} or 07[0-9]{7}) structures. Understand dialing procedures and validation via regex ^(222[1-5][0-9]{5}|06[1-5][0-9]{6}|07[0-9]{7}|80[0-2][0-9]{6})$.

This guide details Réunion phone number formats, validation (landline: ^0262\d{6}$, mobile: ^069[234]\d{6}$). Learn domestic/intl formats, regex & best practices. Includes operator prefixes (0692, 0693, 0694), emergency numbers (15, 17, 18), & service types.

Explore Romania's phone number format (+40): structure, area codes, and validation. Understand 9-digit NSN, geographic (2X/3X), mobile (7X) formats. Includes regex, and number portability.

Explore Russia's phone number system: format (+7), area codes, & validation. Understand mobile (9XX), landline formats, & number portability introduced in 2013. Includes regex validation examples and dialing codes, crucial for developers integrating Russian telecom. Learn about toll-free (800) and emergency (112) numbers.

Explore Rwanda's phone number system: formats, area codes, & validation. Understand 9/10-digit patterns (landline: 0252XXXXXX, mobile: 078XXXXXXX). Includes regex for validation, operator prefixes (MTN: 078, Airtel: 072), emergency numbers (112, 912), and code snippets.

Saint Barthélemy phone numbers explained: format, area codes (+590), & validation. Includes landline (590 27XXXXXX), mobile (690XXXXXX) formats, plus regex for validation (^590\d{7}$). Learn dialing procedures & number portability.

Understand Saint Helena, Ascension, & Tristan da Cunha phone numbers (+290): formats, area codes, & validation. Learn landline (2XXXX), mobile ([5-6]XXXX) & special service (8XXXX) patterns. Includes regex for validation & dialing procedures for developers. Time zone considerations included.

Explore Saint Kitts & Nevis (+1 869) phone number formats, validation, and structure. Understand NANP specifics, landline (2XX), mobile (66X), & toll-free patterns. Includes regex for validation and E.164 storage best practices, plus MNP considerations for developers. Example: +1 869 662 XXXX.

This guide details Saint Lucia's phone number formats, area code (+1 758), and validation. Learn number portability, SMS integration via SMPP, and regex validation: `/^1758[2-9]\d{6}$/`. Includes NTRC regulatory compliance and carrier details like FLOW & Digicel's LTE bands (e.g., Band 3).

Dial Saint Martin (French) numbers correctly! This guide details the +590 country code, 10-digit formats (0590/0690 prefixes), and Sint Maarten cross-border dialing (+1 721). Includes emergency numbers (112, 17, 18, 15), business formats, provider info (Orange, SFR), and number portability.

SPM phone number guide (+508): formats, validation (landline 4XXXXX, mobile 55XXXX), and telecom infrastructure. Learn 6-digit number patterns, validation regex, and emergency codes (15, 17, 18, 112). Includes JavaScript validation examples and international dialing.

Explore Saint Vincent & Grenadines phone number formats (+1-784): structure, validation & dialing rules. Understand NANP integration, mobile/landline prefixes (e.g., 43X, 266), & regex examples. Implement robust validation with E.164 format & NTRC compliance for telecom solutions.

Explore Samoa's phone number formats (+685 area code) with this technical guide. Learn landline (2-5, 60 prefixes), mobile (7/8 prefixes), & toll-free validation. Includes regex examples, numbering system details, and emergency number (911) handling for developers. Understand 5-7 digit lengths & telecom landscape.

San Marino phone number deep-dive: format, area codes (+378), & validation. Understand 8-digit structure, landline (0549), mobile (6XXX), premium (7XXX) prefixes. Includes regex for validation.

Understand São Tomé & Príncipe phone number formats (+239) with this technical guide. Learn validation using regex (e.g., /^(\+239)?9\d{6}$/ for mobile), E.164 standards, and number structure. Includes dialing codes, operator details (CST, Unitel STP), and regulatory compliance for developers. Total length: 9 digits.

Explore Saudi Arabia phone number formats, including area codes and validation. Understand +966 country code usage, mobile/landline patterns, and number structure. Includes validation regular expressions and practical examples for parsing and verifying phone numbers.

Senegal phone number guide: formats, area codes, validation. Understand the 9-digit NXX XXX XXX structure, landline (3XX) vs mobile (7XX) prefixes. Includes regex for validation and E.164 formatting (+221). Covers number portability and ARTP compliance. Perfect for developers.

Explore Serbia's phone number formats (+381): area codes (Belgrade 11, Novi Sad 21), landline/mobile patterns, & validation. Includes regex for developers & examples like 06X X{6,7} mobile format. Learn about number portability, RATEL oversight, and technical implementation details.

Explore Seychelles phone number formats (+248), including landline (4[2-46]XXXXX) & mobile (2[125-8]XXXXX) structures. Learn validation via regex, dialing codes, & emergency numbers (999, 151). Ideal for developers needing telecom insights.

Sierra Leone phone number deep-dive: formats, validation, & dialing. Understand +232 country code, mobile (25,3[0-5],66,7[2-9],8[08],9[09]XXXXXX) & landline (22[2-4][2-9]XXXX) patterns. Includes regex for validation & E.164 storage best practices.

Guide to Singapore phone number formats (+65): validation, structure, and implementation. Learn landline (6), mobile (8/9), VoIP (3) prefixes. Includes JavaScript validation code and regex.

This guide details Sint Maarten (+1) phone number formats, validation, and area code (721). Learn E.164 implementation, regex for validation (e.g., ^\+1721[2-9]\d{6}$), emergency number handling (911, 912, 919), and number portability considerations. Includes number type prefixes (52X, 54X, 58X).

This guide details Slovakia phone number formats (+421), crucial for developers integrating with Slovak users. Learn E.164 structure, area/service codes (1-4 digits), validation using regex (mobile: ^\+4219\d{8}$), and number portability considerations for robust application design. Max length: 15 digits.

Explore Slovenia phone number formats (+386): validation (regex examples), area codes, mobile/landline structure. Ensure data integrity using E.164. Includes number portability, 5G implementation, and troubleshooting tips. Perfect for developers integrating Slovenian telecom systems.

Solomon Islands phone numbers explained: formats, area codes (+677), & validation. Learn landline (2XXXXXX) & mobile ([789]XXXXXX) patterns. Includes regex & Python validation examples.

Understand Somalia's (+252) phone number formats, validation, and structure. Learn E.164 compliance, mobile/landline patterns (0[6-7,9]X XXX XXXX, 0X XX XXX), & regex. Implement robust validation for 7-9 digit numbers.

Explore South Africa's phone number system (+27): formats, area codes, & validation. Understand 9-digit number structure, ICASA regulations, & number portability (5-7 days). Includes number blocking for fraud prevention, plus restricted number registry details.

Explore South Korean phone number formats, area codes, and validation. Understand landline (02-XXXX-XXXX), mobile (010-XXXX-XXXX) & toll-free formats. Includes regex for validation and insights into the +82 country code, number portability, and telecom landscape. Essential for developers integrating with South Korean systems.

This guide details South Sudan's phone number formats (+211), crucial for developers. Learn mobile (91X, 92X, 97X, 98X, 95X) & landline (18X) patterns. Includes E.164 validation regex & normalization for robust app integration.

Explore Spain's +34 phone number format: a technical guide for developers. Understand the 9-digit NSN structure, geographic (91X, 93X, 95X) & mobile (6XX, 7YX) prefixes. Includes regex validation examples and premium number rules.

Explore Sri Lanka phone number formats (+94) with validation rules and area codes. Learn E.164 formatting, mobile (07x), landline, and short code patterns. Includes regex for validation and MNP handling. Example: Colombo area code is 11.

Explore Sudan phone number formats (+249): structure, area codes, and validation. Understand mobile (1[0-2][0-9]{7}|9[0-3569][0-9]{7}), landline (1[58][35-7][0-9]{6}) patterns. Includes regex for validation and E.164 storage guidance for developers.

Explore Suriname's phone number formats (+597) for seamless integration. Understand 6/7-digit landline/mobile patterns, domestic dialing, & international (+597) calls. Includes validation regex & E.164 standardization for developers. Learn Telesur/Digicel carrier specifics.

Explore Svalbard & Jan Mayen's phone number formats (+47): structure, area codes, & validation. Learn geographic (79 prefix), mobile, & emergency number formats. Includes JavaScript validation examples & undersea cable infrastructure details.

Explore Sweden's phone number format (+46): area codes, subscriber numbers, & validation. Includes E.164 compliance, geographic (08, 031, 040), & mobile (07) patterns. Regex examples for validation & handling 8-12 digit numbers. Learn about emergency (112) & premium rate (0900) numbers.

Explore Switzerland's phone number formats (+41 country code) and validation rules. Understand the 9-digit closed numbering plan, including area codes (2-4 digits). Includes regex for geographic (021), mobile (079), toll-free (0800), and premium numbers. Compliant with ITU-T E.164.

Understand Syrian phone number formats (+963) with this technical guide. Learn landline (0X{1-2}Y{6-7}) & mobile (09[1-689]XXXXXXX) patterns, validation regex, & ITU-T E.164 standards. Includes number structure, network codes (Syriatel, MTN), and implementation details.

Explore Taiwan's phone number formats (+886): area codes, landline/mobile validation, and telecom regulations. Implement robust validation with regex examples like `/^09\d{8}$/`. Includes number portability, E.164 compliance, and NCC guidelines. Essential for developers integrating Taiwanese numbers; understand 1-3 digit area codes and 6-8 digit subscriber numbers.

Integrate +992 country code phone numbers: area codes, validation (regex), & formatting. Covers mobile (91, 92, 93 prefixes) & landline formats with 5-7 digit subscriber numbers. Implement E.164 storage, MNP, & error handling for robust telecom integration.

This guide details Tanzania phone number formats (+255), validation, and area codes. Learn the 9-digit national number structure, mobile (6/7), and landline (2) patterns. Includes regex for validation and MNP insights.

Understand Thailand's phone number system (+66): format, area codes, & validation. Includes NSN structure (8-9 digits), domestic/international formats, MNP, & E.164 compliance. Ideal for developers.

This guide details Timor-Leste phone number formats (+670), validation, and structure. Learn the 7-digit system, number categories (geographic, mobile), and regex patterns like `/^7[2-8]\d{5}$/` for mobile validation. Includes Javascript validation examples and E.164 formatting.

Comprehensive guide to Togo phone number formats (+228): landline (2[2-7]XXXXXX), mobile (7[019]XXXXXX, 9[0-36-9]XXXXXX), & special services. Includes validation regex and E.164 formatting. Understand Togo's numbering for accurate app integration.

Explore Tokelau's (+690) phone number system: formats, validation & dialing. Understand number allocation by atoll (2xx-Atafu, 3xx-Nukunonu, 4xx-Fakaofo). Includes regex examples and ITU-T E.164 compliance for developers integrating Tokelau telecom solutions.

Integrate Tonga (+676) phone numbers correctly. Understand 5-7 digit formats, landline (2-8)XXXX, mobile 7XXXX, toll-free 0800XXX. Includes validation regex & infrastructure details. Ensure accurate number handling.

Understand Trinidad & Tobago phone number formats (+1 868): validation (regex), area codes, and emergency prefixes (999, 990). Implement number portability, E.164 storage, and TATT compliance. Includes code snippets for validation and service routing.

Explore Tristan da Cunha phone numbers (+290): format, area code, & validation. Understand the 8XXX range, 4-digit subscriber numbers, & telecom infrastructure. Includes JavaScript/Python validation examples & regex for developers integrating +290 numbers. Learn about Sure's 99.9% uptime target.

Explore Tunisia phone number formats (+216): structure, validation, and implementation. Understand landline (71-78 prefixes), mobile (20-29, 50-59, 90-99 prefixes), and special service number patterns. Includes regex examples and MNP handling for robust applications.

Explore Turkey phone number formats (+90): validation (regex examples), area codes, & structure per ITU-T E.164. Includes mobile (5XX), geographic ([2-3]XX), toll-free (800). Learn E.164 formatting & BTK compliance for robust applications. Max length: 15 digits.

Understand Turkmenistan phone number formats (+993) for seamless integration. Learn area/mobile codes (12, 6X, 71), validation regex (^[1-5]\d{1}\d{6}$, ^(6[0-9]|71)\d{6}$), and E.164 formatting. Includes JavaScript validation examples and regulatory compliance.

Explore Turks & Caicos Islands phone number formats (+1 649): validation, structure (NPA-NXX-XXXX), & regulatory compliance. Implement robust regex (e.g., ^649[2-9]\d{6}$) for local/international formats. Understand TCTC's role, number portability, & NANPA guidelines. Ideal for developers.

Integrate Tuvalu phone numbers (+688) correctly. This guide details number formats (landline '2', mobile '7', premium '9'), 5-digit subscriber validation via regex (e.g., ^7\d{4}$). Includes TypeScript examples and database storage best practices for robust implementation.

This guide details USVI phone number formats, including the +1-340 area code, validation rules, and NANP compliance. Learn local/toll-free dialing, E.164 formatting, and regex validation. Includes number portability, emergency services (911/E911), and code snippets for developers.

Understand Uganda's phone number system: formats (+256 country code), area codes, & validation. Includes regex for mobile (7[0-9]{8}), landline ([34][0-9]{8}). Learn UCC regulatory compliance, emergency numbers (999/112), & service availability (99.9% min).

Explore Ukraine phone number formats (+380), area codes, & validation. Implement emergency numbers (101, 102, 103, 104, 112 rollout), mobile operator codes (67, 50, 63), & MNP. Includes dialing formats & NCCIR regulations for developers.

A technical guide to UAE phone number formats (+971): validation, structure, & area codes. Covers mobile (+971 5[024-68] X{7}), landline (+971 [2-9] [2-8]X{6}), toll-free (+971 800 X{2,9}). Includes regex, implementation, & TDRA compliance for developers.

Comprehensive guide to UK phone number formats, area codes (2-5 digits), and validation. Learn geographic (01/02), mobile (07), & non-geographic (03, 08, 09) number structure. Includes regex for validation and examples like London's '020' area code.

Explore the structure of United States phone numbers, including NANP, area codes (NXX format), and validation. Learn formatting rules, constraints, and special numbers like 800. Includes regex examples and implementation for robust validation, covering 10-11 digit numbers.

Explore United States phone number formats (+1), NANP structure, and validation. Implement exchange code rules (first digit 2-9, excluding N11). Includes E911/Kari's Law compliance, location services (GPS/Wi-Fi), and Missouri dialing (10-digit). See JavaScript validation examples.

Explore United States phone number formats, validation, and area codes (+1), focusing on Kentucky. Understand time zone nuances (ET/CT), emergency services (911/NG911), and regulatory compliance. Includes validation code snippets and upcoming 502 area code overlay (2027).

Explore US area code 432: serving Texas' Permian Basin (Midland, Odessa) since April 5, 2003, after splitting from 915. Covers landline, wireless, VoIP. Managed by NANPA; requires 10-digit dialing. Includes coordinates (e.g., Midland: 31.99735, -102.07791).

Explore the United States (+1) phone number system, focusing on Colorado. Understand NANP structure: area codes (303, 720, 719, 970), 7-digit subscriber numbers, and dialing. Includes regex patterns like `^\+1\s(\d{3})\s(\d{3})\s(\d{4})$` for validation and number portability details.

Explore US phone number formats (+1 country code), focusing on Virginia area codes (703, 571, 757, 804, 434, 540, 826, 948, 686). Learn validation using regex and NANP standards. Includes E.164 formatting and portability.

Explore US phone number formats, area codes, and validation. Learn North Carolina's 10 area codes (252, 336, 704, 828, 910, 919 incl. overlays 743, 980, 472, 984). Includes number portability, NANPA guidelines, and Node.js regex validation examples.

Explore the US phone number system: NANP format (+1 NXX NXX XXXX), area code overlays, & validation. Implement robust regex (e.g., Pennsylvania's ^\+1([2-9]\d{2}[2-9]\d{2}\d{4})$), E911 compliance, & number portability for accurate applications.

Explore Uruguay phone number formats (+598): structure, validation & dialing. Understand fixed-line (2, 4-7), mobile (9[1-9]XX XXXX), & special services (0800, 090X). Includes number portability, NPDB insights, and ITU E.164 standards for developers. Learn about the 8 digit format and URSEC regulations.

Explore Uzbekistan's phone number system: formats (+998), 2-digit area codes (Tashkent: 71, Karakalpakstan: 61), & validation. Includes number allocation, ITU-T E.164 compliance, and blocking rules. Ideal for developers needing Uzbek telecom insights.

This guide details Vanuatu phone number formats, validation, and implementation. Learn the 7-digit structure, +678 country code, and number allocation (2XX-5XX/7XX series). Includes regex for validation and operator prefix identification, crucial for developers integrating Vanuatu telecom.

Venezuelan phone number guide: formats, area codes, & validation. Understand +58 country code, 10-11 digit structure, mobile prefixes (412, 414, 416, 424, 426). Includes regex for validation, sanitization functions, CONATEL compliance, & MNP details.

Understand Vietnam's (+84) phone number formats: landline (024, 028), mobile (03x, 07x, 08x, 09x). Includes validation regex, normalization to E.164, & network prefixes. Covers 10-digit mobile standardization post-2018 and toll-free (1800) formats.

Explore Wallis & Futuna phone number formats (+681): structure, validation & technical details. Understand landline (72XXXX), mobile (8[23]XXXX) & toll-free (80[0-5]XXX) patterns. Includes regex for validation & E.164 storage best practices; critical for developers.

Western Sahara phone numbers explained: format, area codes (+212), & validation. Understand Laayoune (5288), Dakhla (5289) prefixes, mobile (06/07) ranges. Includes regex for validation, E.164 international format, & emergency numbers (15, 19, 177). Targetting telecom professionals.

Explore WhatsApp Cloud API: Meta's scalable messaging solution. Learn setup, security (ISO 27001, GDPR), & performance optimization (up to 500 MPS). Includes JSON/code examples for webhooks, rate limiting, & e-commerce integration. Achieve 99.9% uptime and robust scalability.

Explore Yemen phone number formats (+967): structure, area codes, & validation. Learn mobile/landline patterns, with a Python validation example. Includes network details (2G/3G/4G), telecom operators (Yemen Mobile, Sabafon, YOU), and E.164 compliance for developers.

Explore Zambia phone number formats (+260): validation, area codes, & structure. Learn 9-digit number rules, geographic (21x), mobile (9x/7x) prefixes, E.164. Includes JavaScript validation examples for ZICTA compliance and number standardization.

Comprehensive guide to Zimbabwe phone number formats (+263), area codes, and validation. Learn mobile (71, 73, 77, 78 prefixes), landline (24, 29, 20), toll-free (80X) patterns. Includes E.164 format, regex examples, and POTRAZ regulatory compliance for developers.

Explore Bahamas phone number formats (+1-242): structure, validation & dialing. Understand NANP rules, landline/mobile patterns (242[2-9]XX-XXXX), & regex. Includes number portability details and operator ranges. Perfect for developers needing number insights.

Explore Åland Islands phone number formats (+358): landline (18[1-8]X{3,6}), mobile (4[0-8]X{4,8}, 50X{4,8}, 4946X{2,6}), toll-free (800X{4,6}). Includes regex for validation, dialing codes, and ITU-T E.164 normalization.