Network & carriers
Sao Tome and Principe's telecom market is served by CST (Companhia Santomense de Telecomunicações) and UNITEL T+.
+239 · ST · UTC+0
Sao Tome and Principe
Country Code & Virtual Numbers
Sao Tome and Principe's +239 code covers one of Africa's smallest island nations, served primarily by CST and UNITEL T+. Capital: São Tomé · Business hours: 4:00 AM–12:00 PM EST.
// The Basics
What is the +239 country code?
Sao Tome and Principe's international dialing code is assigned by the ITU (International Telecommunication Union) and used for every call placed from outside the country.
Numbering format
Numbers are typically 7 digits, dialed the same way domestically and internationally beyond the country code.
Calling culture
Business culture in Sao Tome and Principe, conducted in Portuguese, values warmth and relationship-building before business matters.
Did you know
Sao Tome and Principe is one of Africa's smallest nations, a small island country in the Gulf of Guinea with a compact telecom market to match.
// Quick Facts
A quick read on Sao Tome and Principe numbers.
Numbers in Sao Tome and Principe are typically 7 digits, dialed the same way domestically and internationally beyond the country code. Rozper stores and dials contacts in full E.164 format automatically, so you never have to think about the formatting.
Want to call Sao Tome and Principe from abroad? Dial your local exit code, then 239, then the local number.
Best time to call Sao Tome and Principe from the US
Sao Tome and Principe is on UTC+0 · Business hours = – EST · Mon–Fri
// Why a Virtual Number
Why get a Sao Tome and Principe virtual number?
A +239 virtual number gives your business instant local presence in Sao Tome and Principe — without the overhead.
Local caller ID in Sao Tome and Principe
When you call from your virtual Sao Tome and Principe number, contacts see a local +239 number — dramatically improving answer rates.
No office needed
Establish a local presence in Sao Tome and Principe without renting space, hiring locally, or installing any hardware.
Instant credibility
A recognizable local number helps build trust with consumers in this small, relationship-driven island market.
Routes to any device
Calls to your Sao Tome and Principe number ring your team on mobile, desktop, or desk phone — wherever they work.
// Platform Features
Everything to call Sao Tome and Principe
The tools to reach Sao Tome and Principe contacts reliably and scale your international presence globally.
150+ country coverage
Get virtual numbers in over 150 countries on the same platform — one dashboard, one bill.
HD voice quality
Crystal-clear calls over our optimised global carrier network. No degraded quality from international routing.
Call recording
Every call recorded and transcribed automatically. Review, share, and reference conversations easily.
Voicemail to text
Voicemails transcribed and delivered by email or SMS. Never miss a message across time zones.
CRM auto-logging
All calls to and from your international number auto-logged in Salesforce, HubSpot, or Zoho.
International analytics
Call volume, answer rates, and duration broken down by country, region, and time of day.
Local Caller ID
Show a local country number as your caller ID when dialling internationally. Improves pickup rates significantly.
Instant provisioning
Activate a new country number in under 60 seconds. No contracts, no hardware, no waiting.
99.99% uptime SLA
Enterprise-grade reliability for your international calling infrastructure, 24/7.
// Get Started
Get a Sao Tome and Principe number today
Active in under ten minutes. No contracts required.
- 01
Sign up
Create your Rozper account in under 2 minutes. No credit card required to start your free trial.
- 02
Get your number
Browse available numbers in your target country and activate instantly.
- 03
Configure routing
Route calls to any device. Set business hours, voicemail, and IVR from your dashboard.
- 04
Start calling globally
Make and receive international calls immediately. Active in under 10 minutes.
// Complete List
All world dial codes by country.
Every country and territory, every international dial code. Click a country to browse it.
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Frequently Asked
Sao Tome and Principe questions answered.
Answers about Sao Tome and Principe's carrier landscape, relationship-first business culture, and getting a local +239 virtual number.
The international dialing code for Sao Tome and Principe is +239. When calling from the US, dial 011 + 239 + the local number. Rozper handles this automatically.
A Sao Tome and Principe virtual number goes live in under 10 minutes. Ask us how.
Start calling Sao Tome and Principe, not tomorrow.
Get a virtual Sao Tome and Principe number or make direct international calls to +239 — active in under ten minutes.