How to call Sao Tome and Principe using the international calling code +239 and area code.
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Example numbers for Sao Tome and Principe:
Your local time
—:—
Time in Sao Tome and Principe
—:—
Code
+239
ISO
ST
Region
Africa
Time zone
Africa/Sao Tome
Every Sao Tome and Principe number in international format follows this shape — colour-coded so you can see where the country code ends and the local number begins.
When dialing Sao Tome and Principe from abroad, the only fixed part is +239 — that's the country code. The rest depends on whether you're calling a mobile or landline number inside Sao Tome and Principe.
+XXX XXX XXXX
Dial the country code +239, then the full mobile number.
Example: +239 981 2345
+239 XX XXXX XXX
Include the area code if applicable. Omit any leading 0.
Enter the country code +239 when dialing Sao Tome and Principe from abroad.
Add the local phone number without the leading zero.
Use TwinPhone to connect the call at low per-minute rates.
Sao Tome and Principe's international country code is +239. It was assigned by the International Telecommunication Union under recommendation E.164 and is the dialing prefix at the start of every Sao Tome and Principe phone number written in international format.
You'll often see +239 referred to in search as the "239 area code". Strictly speaking, +239 is a country code — area codes are sub-national, used inside Sao Tome and Principe. The practical meaning is the same: any number starting with +239 or 00239 is a Sao Tome and Principe number.
TwinPhone routes calls to every +239 number directly from your browser — no app, no SIM card, no calling card. Type +239 followed by the local number, press call, and you're connected.
Dialing codes immediately above and below +239 in the ITU plan — handy if you mistyped a digit or are dialing across a region.
Everything you need to know about TwinPhone.
The country code (international dialing code) for Sao Tome and Principe is +239. To call Sao Tome and Principe from abroad, dial +239 followed by the national number without its leading zero.
+239 is Sao Tome and Principe's international country calling code under the ITU E.164 plan — often searched as the "239 area code". Any phone number starting with +239 is a Sao Tome and Principe number.
From TwinPhone, just type +239 and the number — we connect it. From a landline, dial your exit code, then +239, then the number without the leading 0.
Sao Tome and Principe's current local time is shown live on this page. Check it before calling so you reach people during waking hours.
No. TwinPhone works directly in your browser — Chrome, Edge, Safari, or Brave. Open the site, add credit, dial +239 and your number, done. No installs, no plugins, no SIM card required.
Yes! Virtual numbers in Sao Tome and Principe start at $1.95/month. Use it as your caller ID so people see a local number, or receive incoming calls directly in your browser.
Every call uses industry-standard transport encryption (TLS + SRTP). We don't sell your data or share your call history. We don't record calls unless you explicitly enable recording.
TwinPhone uses adaptive audio technology that adjusts to your connection quality. Even on slow or unstable Wi-Fi — airport, hotel, coffee shop — your call stays connected and audible.
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