São Tomé and Príncipe Country Code

The country code for São Tomé and Príncipe is +239. Dial it after your country’s international access prefix (for example 011 from the US), then the local number.

+239

Calling Code

209.6K

Population

964 km²

Area (km²)

STN

Quick Facts

Democratic Republic of São Tomé and Príncipe

São Tomé and Príncipe

Africa Middle Africa

Coat of arms

Basic Information

Calling Code +239

ISO Codes ST / STP

Capital São Tomé

Independent Yes

Demographics

Population 209.6K

Area 964 km²

Languages Portuguese

Driving Side right

Geography & Time

Region Africa

Subregion Middle Africa

Continent Africa

Time Zones UTC

Currency

STN (STN)

Borders

N/A

Neighboring countries

How to Call São Tomé and Príncipe

From Any Country:

 +239 [Local Phone Number]

Example:

+239 123 4567

(Example: Calling São Tomé, São Tomé and Príncipe from anywhere in the world)

How do I dial mobiles vs landlines in São Tomé and Príncipe

São Tomé and Príncipe uses country code +239 and a simple 7-digit national number format. There are no traditional area codes, so for most calls you dial the number exactly as published: YYY XXXX domestically, or +239 YYY XXXX from abroad. If you’re calling internationally from São Tomé and Príncipe, the common international prefix is 00 (or use the + shortcut on mobiles).

The easiest way to tell landlines vs mobiles is the first digit. Fixed/landline services generally start with 2 (and then a locality/service prefix like 222, 223, 225, etc.). Mobile services generally start with 9; published national numbering references show CST mobile blocks in the 98x/99x ranges (so you’ll often see mobiles written like 98X XXXX or 99X XXXX, and internationally +239 98X XXXX / +239 99X XXXX). For user experience on your site, the best practice is to recommend saving numbers in E.164 format as +239 plus all 7 digits to avoid formatting mistakes.

What are the emergency numbers in São Tomé and Príncipe

Emergency calling guidance commonly lists 112 (fire), 113 (police), and 222 22 22 (ambulance / emergency medical). There’s also a widely promoted health support “green line” 115 used for urgent health guidance (and has been promoted for emergency guidance as well).

What are the city and area codes in São Tomé and Príncipe

Dialing tip: São Tomé and Príncipe uses a closed 7-digit plan (no “drop a 0”, no city area-code dialing rules). If a landline is published as 222 1234, you dial 222 1234 locally and +239 222 1234 from abroad—same digits, just add +239.

City	Area Code	International Dialing Format
Água Grande (São Tomé city area)	222	+239 222 XXXX
Água Grande (additional fixed ranges)	224	+239 224 XXXX
Água Grande (additional fixed ranges)	228	+239 228 XXXX
Água Grande (additional fixed ranges)	229	+239 229 XXXX
Santo Amaro	222 (sub-range)	+239 222 XXXX
Guadalupe	223	+239 223 XXXX
Neves / Santa Catarina	223 (sub-range)	+239 223 XXXX
Região Autónoma do Príncipe (Santo António)	225	+239 225 XXXX
Angolares / Porto Alegre	226	+239 226 XXXX
Santana / Ribeira Afonso	226 (sub-range)	+239 226 XXXX
Trindade / Madalena	227	+239 227 XXXX

Which mobile prefixes do mobile operators use in São Tomé and Príncipe

Dialing tip: Mobiles in São Tomé and Príncipe generally start with 9, so the safe universal format to show users is +239 9XX XXXX. Operator prefixes can help recognition (e.g., CST 98/99), but if you need billing-accurate carrier identification, use a live carrier lookup rather than relying only on the prefix.

Mobile Operator	Dialing Prefixes
CST (Companhia Santomense de Telecomunicações)	98, 99 (international: +239 98X XXXX / +239 99X XXXX)
Unitel STP	Commonly seen 90X XXXX ranges (examples in local directories include 900… / 901… numbers)