What is the country code for Sao Tome and Principe?

The country code for Sao Tome and Principe is +239.

How are mobile numbers structured in Sao Tome and Principe?

Mobile numbers in Sao Tome and Principe are structured as 7 digits, starting with the digit '9'. For example, a mobile number could be 9001234.

What are the dialing procedures for international calls to Sao Tome and Principe?

To make an international call to Sao Tome and Principe, you should dial your international access code (e.g., '00' in most countries), followed by the country code '+239' and then the 7-digit subscriber number.

Who are the major telecom operators in Sao Tome and Principe, and what are their number ranges?

The major telecom operators in Sao Tome and Principe are CST, which handles landlines with numbers starting with '22', and Unitel STP, which manages mobile numbers that start with '9'.

What is the country code for Sao Tome and Principe?

The country code for Sao Tome and Principe is +239.

How many digits are there in a Sao Tome and Principe phone number?

Phone numbers in Sao Tome and Principe have a fixed length of 7 digits.

What is the format for geographic phone numbers in Sao Tome and Principe?

Geographic phone numbers in Sao Tome and Principe follow the format 22X{5}, for example, 2245001.

How can I validate a mobile phone number from Sao Tome and Principe?

You can use the regular expression /^9\d{6}$/ to validate mobile phone numbers from Sao Tome and Principe.

Is there a national prefix used in Sao Tome and Principe?

No, there is no national prefix used in Sao Tome and Principe.

How do you make an international call from Sao Tome and Principe?

To make an international call from Sao Tome and Principe, dial 00 followed by the country code, area code, and subscriber number.

What regulatory body manages phone numbers in Sao Tome and Principe?

The Autoridade Geral de Regulação (AGR) is responsible for managing phone numbers in Sao Tome and Principe.

What is the main mobile network operator in Sao Tome and Principe?

Unitel STP is the main mobile network operator in Sao Tome and Principe.

What is the international dialing prefix for Sao Tome and Principe?

The international dialing prefix for Sao Tome and Principe is 00.

What format should I use to store Sao Tome and Principe phone numbers?

Store phone numbers in a normalized format, including the country code (+239), to facilitate international operations.

How do you dial a landline number from another landline in Sao Tome and Principe?

Dial the 7-digit subscriber number directly when calling from one landline to another in Sao Tome and Principe.

What is the format for special numbers in Sao Tome and Principe?

Special numbers in Sao Tome and Principe have a 3-digit format, such as 118.

Are there any golden numbers available in Sao Tome and Principe?

There are no publicly available details on golden numbers in Sao Tome and Principe.

How do you dial a mobile number from a landline in Sao Tome and Principe?

Dial the 7-digit mobile number directly from a landline in Sao Tome and Principe.

What should developers consider when handling Sao Tome and Principe phone numbers?

Developers should ensure validation using the provided regular expressions, store numbers in a normalized format, and support international dialing procedures.

What is the primary telecom operator for landlines in Sao Tome and Principe?

CST is the primary telecom operator for landlines in Sao Tome and Principe.

Phone Numbers in Sao Tome and Principe: A Complete Guide

Q: Is number portability available in Sao Tome and Principe?

No, mobile number portability is not available in Sao Tome and Principe. Subscribers cannot retain their phone numbers when switching between different mobile network operators.

Quick Reference

Country: Sao Tome and Principe
Country Code: +239
International Prefix: 00
National Prefix: None

Overview

Gain a thorough understanding of the telephone numbering plan in Sao Tome and Principe. This guide is essential for telecom professionals, developers, and business analysts seeking detailed insights into the structure, regulations, and practical usage of phone numbers in this region.

Numbering Plan Structure

General Number Structure

All phone numbers in Sao Tome and Principe adhere to a fixed-length format:

Country Code: +239
Subscriber Number: 7 digits

Number Breakdown

Type	Format	Example	Description
Geographic	`22X{5}`	2245001	Standard landline numbers.
Mobile	`9XX{5}`	9001234	Mobile numbers.
Special	`X{6}`	118	Short codes for emergency services and other special services.

Regular Expressions

Use the following regular expressions to validate phone numbers in Sao Tome and Principe:

Geographic Numbers: /^22\d{5}$/
Mobile Numbers: /^9\d{6}$/
Special Numbers: /^\d{3}$/

Dialing Procedures

Domestic Dialing

Landline to Landline: Dial the 7-digit subscriber number directly.
Landline to Mobile: Dial the 7-digit mobile number directly.
Mobile to Mobile: Dial the 7-digit mobile number directly.

International Dialing

Outgoing International Calls: Dial 00 followed by the country code, area code, and the subscriber number.
Incoming International Calls: International callers should dial +239 followed by the 7-digit subscriber number.

Recent Changes to the Numbering Plan

Currently, there are no significant updates to the numbering plan in Sao Tome and Principe. The existing structure remains stable, with no new prefixes or number ranges introduced recently.

Number Portability

Mobile number portability is not available in Sao Tome and Principe. Subscribers cannot retain their phone numbers when switching between different mobile network operators.

Major Telecom Operators and Number Ranges

Operator	Number Range	Description
CST	22XXXXXX	The primary telecom operator for landlines.
Unitel STP	9XXXXXXX	The main mobile network operator.

ITU-T Recommendations

Sao Tome and Principe's numbering plan complies with ITU-T Recommendation E.164, which defines the international public telecommunication numbering plan.

Number Allocation and Management

The Autoridade Geral de Regulação (AGR) is the regulatory body responsible for the allocation and management of phone numbers in Sao Tome and Principe. They ensure compliance with national and international standards and manage the assignment of number ranges to telecom operators.

Technical Considerations

For Developers and System Administrators

Validation: Ensure your system validates phone numbers using the regular expressions provided above.
Storage: Store phone numbers in a normalized format, including the country code (+239), to facilitate international operations.
Internationalization: If your application handles international calls, ensure it supports the dialing procedures outlined above.

Special Cases

Golden Numbers: There are no publicly available details on golden numbers or special number allocations in Sao Tome and Principe.
Number Blocking: No specific information is available on number blocking or restrictions.

For the most up-to-date information on telecommunications regulations in Sao Tome and Principe, please consult the official website of the Autoridade Geral de Regulação (AGR).

Conclusion

Understanding the phone numbering plan in Sao Tome and Principe is crucial for anyone involved in telecommunications or international business. This guide provides the essential technical details, ensuring effective work with phone numbers in this region. Always refer to official sources for the most current information and regulations.

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