Sao Tome and Principe: Mobile Coverage & Carriers
São Tomé and Príncipe has two mobile network operators: CSTelecom and Unitel STP. Both 3G and 4G/LTE services are commercially available in the country. Roaming eSIMs are likely to connect via LTE bands B3 (1800 MHz) and B8 (900 MHz), which are the key frequencies deployed locally.
Regarding local eSIM availability from carriers in São Tomé and Príncipe, the current status is being verified. Given the low confidence level in this information, travelers and users should confirm directly with CSTelecom or Unitel STP whether they currently issue eSIMs domestically. 5G has not yet been commercially launched in the country.
| Connectivity | As publicly reported |
|---|---|
| Network generations | 3G, 4G/LTE |
| Main mobile networks (MNOs) | CSTelecom, Unitel STP |
| Key travel bands | B3(1800), B8(900) |
| Local eSIM support | We are verifying local eSIM availability |
| Region | Africa |
| Capital | Sao Tome |
| Calling code | +239 |
eSIM for Sao Tome and Principe → · eSIM vs roaming →
Compiled from public-record telecom facts (the MNO roster, commercially-launched 3G/4G/5G generations, deployed travel-relevant bands and local-eSIM support) and verified June 2026; see the source we compile this country from. This country's connectivity row is currently low-confidence (small / island / single-operator / fast-changing market), so treat the carrier, band and 5G details as a starting point we are still verifying. How we compile this. Plan prices are supplied by the eSIM provider feed at publish time, not stored here.