What is the country code for the U.S. Virgin Islands?

The country code for the U.S. Virgin Islands is +1, which is shared with other regions under the North American Numbering Plan (NANP).

How are phone numbers structured in the U.S. Virgin Islands?

Phone numbers in the U.S. Virgin Islands follow the format +1 340 NXX-XXXX, where '340' is the area code, 'NXX' is the central office code (with N ranging from 2 to 9), and 'XXXX' is the subscriber number.

What are the dialing procedures for international calls to the U.S. Virgin Islands?

To make an international call to the U.S. Virgin Islands, dial your international exit code, followed by +1 340, and then the seven-digit local number (NXX-XXXX).

Which major telecom operators provide services in the U.S. Virgin Islands, and what are their number ranges?

The major telecom operators in the U.S. Virgin Islands include Viya (landline/mobile services with numbers like 340-774-XXXX), AT&T (mobile services with numbers like 340-642-XXXX), and Sprint (operating under T-Mobile's network with numbers like 340-690-XXXX).

What is the country code for the U.S. Virgin Islands?

The country code for the U.S. Virgin Islands is +1.

What area code is used for phone numbers in the U.S. Virgin Islands?

The area code used for all phone numbers in the U.S. Virgin Islands is 340.

How do you dial a U.S. Virgin Islands phone number from abroad?

To dial a U.S. Virgin Islands phone number from abroad, use your international exit code, followed by +1, then 340, and the local number (NXX-XXXX).

What is the standard phone number format in the U.S. Virgin Islands?

The standard phone number format in the U.S. Virgin Islands is +1 340 NXX-XXXX.

Are U.S. Virgin Islands phone numbers part of the North American Numbering Plan?

Yes, U.S. Virgin Islands phone numbers are part of the North American Numbering Plan (NANP).

What is the international prefix for dialing out from the U.S. Virgin Islands?

The international prefix for dialing out from the U.S. Virgin Islands is 011.

Which telecom operators are major providers in the U.S. Virgin Islands?

The major telecom operators in the U.S. Virgin Islands include Viya, AT&T, and Sprint (operating under T-Mobile's network).

What is the format for toll-free numbers in the U.S. Virgin Islands?

The format for toll-free numbers in the U.S. Virgin Islands is +1 800 XXX-XXXX.

How are phone numbers validated in the U.S. Virgin Islands?

Phone numbers in the U.S. Virgin Islands can be validated using regular expressions specific to their format, such as ^\+1\s340\s[2-9]\d{2}-\d{4}$ for general numbers.

What is the role of the FCC in the U.S. Virgin Islands' phone number management?

The FCC oversees number allocation and management, ensuring compliance with NANP standards and assigning number blocks to telecom operators.

What are golden numbers in the context of the U.S. Virgin Islands?

Golden numbers are special phone numbers that are easy to remember, but there are no specific regulations for golden numbers in the U.S. Virgin Islands.

What are the dialing procedures for domestic calls within the U.S. Virgin Islands?

For domestic calls within the U.S. Virgin Islands, you can dial the seven-digit number directly (NXX-XXXX) for landline to landline, landline to mobile, and mobile to mobile calls.

What is the regular expression for validating U.S. Virgin Islands toll-free numbers?

The regular expression for validating U.S. Virgin Islands toll-free numbers is ^\+1\s800\s\d{3}-\d{4}$.

How do you dial a toll-free number from the U.S. Virgin Islands?

To dial a toll-free number from the U.S. Virgin Islands, dial 1 + 800 + XXX-XXXX.

What is the national prefix for dialing within the U.S. Virgin Islands?

The national prefix for dialing within the U.S. Virgin Islands is 1.

Are there any specific regulations for number blocking in the U.S. Virgin Islands?

Users can block specific numbers through their telecom provider, subject to the provider's policies, but there are no specific regulations mentioned.

How should developers store U.S. Virgin Islands phone numbers for consistency?

Developers should store U.S. Virgin Islands phone numbers in the international format (+1 340 NXX-XXXX) to ensure consistency.

What is the format for premium rate numbers in the U.S. Virgin Islands?

The format for premium rate numbers in the U.S. Virgin Islands is +1 900 XXX-XXXX.

Understanding Phone Numbers in the U.S. Virgin Islands

Q: Is number portability supported in the U.S. Virgin Islands?

Yes, the U.S. Virgin Islands support number portability, allowing users to retain their phone numbers when switching between service providers, applicable to both mobile and landline numbers.

Quick Reference Guide

Country: U.S. Virgin Islands
Country Code: +1
International Prefix: 011
National Prefix: 1
Area Code: 340 (applies to all regions)

Overview of U.S. Virgin Islands Phone Numbers

The U.S. Virgin Islands (USVI) adhere to the North American Numbering Plan (NANP), a standardized system used across the United States, Canada, and other countries. This guide offers a detailed look at the structure, formats, and dialing procedures for phone numbers in the U.S. Virgin Islands, providing essential insights for telecom professionals, developers, and systems administrators.

Number Structure Explained

Standard Number Format

The typical phone number format in the U.S. Virgin Islands is:

+1 340 NXX-XXXX

+1: Country code for NANP.
340: Area code specific to the U.S. Virgin Islands.
NXX: Central office code (N can be any digit from 2 to 9, X can be any digit from 0 to 9).
XXXX: Subscriber number (any four digits).

Number Format Table

Type	Format	Example
Geographic	+1 340 NXX-XXXX	+1 340 774-1234
Mobile	+1 340 NXX-XXXX	+1 340 642-5678
Toll-Free	+1 800 XXX-XXXX	+1 800 555-1234
Premium Rate	+1 900 XXX-XXXX	+1 900 123-4567

Validating with Regular Expressions

To validate U.S. Virgin Islands phone numbers, use these regular expressions:

General Format: ^\+1\s340\s[2-9]\d{2}-\d{4}$
Toll-Free Numbers: ^\+1\s800\s\d{3}-\d{4}$
Premium Rate Numbers: ^\+1\s900\s\d{3}-\d{4}$

Dialing Procedures

Domestic Calls

Landline to Landline: Dial the seven-digit number directly (NXX-XXXX).
Landline to Mobile: Dial the seven-digit number directly (NXX-XXXX).
Mobile to Mobile: Dial the seven-digit number directly (NXX-XXXX).
Landline/Mobile to Toll-Free: Dial 1 + 800 + XXX-XXXX.
Landline/Mobile to Premium Rate: Dial 1 + 900 + XXX-XXXX.

International Calls

Outgoing (from U.S. Virgin Islands): Dial 011 + [Country Code] + [Area Code] + [Local Number].
Incoming (to U.S. Virgin Islands): Dial your international exit code + 1 + 340 + NXX-XXXX.

Number Portability

The U.S. Virgin Islands support number portability, allowing users to retain their phone numbers when switching between service providers. This applies to both mobile and landline numbers. The portability process is governed by the Federal Communications Commission (FCC).

Major Telecom Operators

The primary telecom operators in the U.S. Virgin Islands include:

Viya: The largest telecom provider in the USVI, offering both mobile and landline services.
AT&T: Provides mobile services in the region.
Sprint: Operates under T-Mobile's network, offering mobile services.

Operator	Service Type	Number Ranges
Viya	Landline/Mobile	340-774-XXXX
AT&T	Mobile	340-642-XXXX
Sprint	Mobile	340-690-XXXX

ITU-T Recommendations

The U.S. Virgin Islands conform to ITU-T Recommendation E.164, which standardizes international telephone numbering plans. This ensures compatibility with global telecommunications systems.

Number Allocation and Management

Number allocation and management in the U.S. Virgin Islands are overseen by the Federal Communications Commission (FCC). The FCC is responsible for assigning number blocks to telecom operators and ensuring that the numbering plan complies with NANP standards.

Technical Restrictions and Special Cases

Golden Numbers: There are no specific regulations regarding golden numbers in the U.S. Virgin Islands.
Number Blocking: Users can block specific numbers through their telecom provider, subject to the provider's policies.

Technical Considerations for Developers

For developers and systems administrators working with U.S. Virgin Islands phone numbers:

Normalization: Always store numbers in the international format (+1 340 NXX-XXXX) to ensure consistency.
Validation: Use regular expressions to validate phone numbers before processing.
Portability: Implement systems that can handle number portability, ensuring that users can retain their numbers when switching providers.
Compliance: Ensure that your systems comply with ITU-T E.164 and NANP standards.

Info: For the most up-to-date information on telecommunications regulations in the U.S. Virgin Islands, please consult the official website of the Federal Communications Commission (FCC).

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