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How to Call São Tomé and Príncipe from the United States
Country code +239 — Dial 011 239 98X XXXX from a US landline or +239 98X XXXX from a mobile phone.
What to Dial
- 1Dial 011 from a US landline, or + from a mobile (hold the 0 key).
- 2Dial 239, the country code of São Tomé and Príncipe.
- 3Dial the number: 7 digits, exactly as written: São Tomé and Príncipe has no leading 0 to drop.
| Calling a… | Written in São Tomé and Príncipe | From a US landline | From a cell phone |
|---|---|---|---|
| Mobile | 98X XXXX |
011 239 98X XXXX |
+239 98X XXXX |
| Landline (Água Grande) | 222 XXXX |
011 239 222 XXXX |
+239 222 XXXX |
X stands for any digit. Mobile numbers start with 90 or 98–99. More number types: São Tomé and Príncipe phone number format.
Mobile or Landline?
São Tomé and Príncipe had 62 mobile subscriptions and 0.8 landlines per 100 people in 2024. Most people you call will be on a mobile, so ask for their mobile number and check what your plan charges for calls to São Tomé and Príncipe mobiles.
Source: World Bank (ITU).
Calling Tips for São Tomé and Príncipe
Best Time to Call
To reach someone between 9 AM and 8 PM in Sao Tome, call between 4:00 AM–3:00 PM EST (1:00 AM–12:00 PM PST). São Tomé and Príncipe doesn’t change its clocks, so the gap moves by an hour when the US does.
São Tomé and Príncipe is on UTC+0, 5 hours ahead of US Eastern Time right now.
Cost Saving Tips
- VoIP services such as Google Voice or Vonage usually charge less per minute than a carrier's standard international rate.
- WiFi calling apps (WhatsApp, Viber, FaceTime) are free when both parties have the app.
- Check your carrier's international plan — many offer add-on packages.