Sao Tome and Principe: Mobile Coverage & Carriers
ESIMBYCOUNTRY at checkout · See all codes →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 | Local eSIM availability unconfirmed — checked July 2026 |
| Region | Africa |
| Capital | Sao Tome |
| Calling code | +239 |
Travel-eSIM country connectivity cheat-sheet
Each country's mobile generations, carriers and roaming-vs-eSIM verdict on one page. Free. No prices — those come from the provider feed.
eSIM for Sao Tome and Principe → · eSIM vs roaming →
eSIM providers covering Sao Tome and Principe
| Provider | Destination coverage | Activation | Plans |
|---|---|---|---|
| Sim Local | No dedicated Sao Tome and Principe page found on the provider's site (checked 2026-07-14) — regional/global plans may still apply; check the provider's destination list | Digital delivery — installs as an eSIM profile on an eSIM-capable, unlocked phone | See plans →10% off with our code ESIMBYCOUNTRY at checkout |
Provider destination pages checked on 2026-07-08 and 2026-07-14. Plans and prices are live on the provider's site — never stored or estimated here. We only list partners we can link and verify directly; this table grows as more providers pass review. How we compile this →
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. Local-eSIM availability checked July 2026 against the major carriers' own pages. This country's connectivity row is low-confidence (small / island / single-operator / fast-changing market): some details could not be confirmed from official sources in our July 2026 check, so treat the carrier, band and 5G specifics as a starting point. How we compile this. Plan prices are supplied by the eSIM provider feed at publish time, not stored here.