libphonenumber API

Sao Tome and Principe Phone Number Format

Country code +239 · ISO ST

How to format, dial, and validate Sao Tome and Principe phone numbers, with live examples.

Country Code

+239

National Prefix

International Prefix

00

Mobile Portability

No

Try it now

Pre-filled with a valid fixed line number for Sao Tome and Principe. Edit it and click "Try It" to see the parsed result.

Number Types & Example Formats

Each Sao Tome and Principe phone-number type supported by libphonenumber, with a real example formatted three ways.

Type Length National International E.164
Fixed Line 7 digits 222 1234 +239 222 1234 +2392221234
Mobile 7 digits 981 2345 +239 981 2345 +2399812345

How to Dial Sao Tome and Principe Numbers

From abroad

Dial +239 followed by the national number.

Dialing out of Sao Tome and Principe

Dial 00 followed by the destination country code and number.

Area Codes

Browse Sao Tome and Principe area codes with cities, timezones, and example numbers for each.

View Sao Tome and Principe area codes →

Validate a Sao Tome and Principe Number with the API

Send the number to the free libphonenumber API to get the parsed country, type, formatting, and validity.

Request
curl https://libphonenumberapi.com/api/phone-numbers/+2392221234

Frequently Asked Questions

What is the country code for Sao Tome and Principe?

The international country code for Sao Tome and Principe is +239. Use this prefix when dialing Sao Tome and Principe numbers from another country.

How long is a Sao Tome and Principe phone number?

Sao Tome and Principe phone numbers are typically 7 digits, not including the +239 country code.

How do I dial a Sao Tome and Principe phone number from abroad?

From abroad, dial +239 followed by the national number.

How do I validate a Sao Tome and Principe phone number programmatically?

Send a GET request to https://libphonenumberapi.com/api/phone-numbers/<number>. The free libphonenumber API returns the parsed country, format, type, and validity for any number — no API key required.