Telephone numbers in Ascension Island
Country Code: +247
International Call Prefix: 00
Ascension Island does not share the same country code (+290) with the rest of St Helena.
Sure South Atlantic stopped providing telecommunications services on Ascension Island on 28 February 2026, following the expiry of its public telecommunications licence. Ascension Island Mobile (AIM), the new government owned operator, launched its mobile service in March 2026. The changeover caused a temporary disruption to international telephone and SMS services, with callers in some locations unable to reach Ascension Island numbers while international routing arrangements were reestablished. The international routes to numbers using the code were temporarily unavailable or unreliable during the transition.
01Calling formats
To call in Ascension Island, the following format is used:
247 yxxxx Calls inside Ascension Island
+247 247 yxxxx Calls from outside Ascension Island
02Ascension Island numbering plan
| Numbering plan (effective of 1 April 2026) | ||
|---|---|---|
| Area | Format of Subscriber Number | Remarks |
| 247 4XXXX | Mobile services | |
| 247 5XXXX | Non-geographic | |
| US Base | 247 62XXX | Geographic |
| Travellers Hill & Airhead | 247 63XXX | |
| Two Boats | 247 64XXX | |
| Georgetown | 247 66XXX | |
| 247 67XXX | ||
As from 1 March 2026, the length of all +247 numbers has increased to 11 digits (including the country code +247) to ensure compliance with international numbering formats. The digits ‘247’ have been inserted as a prefix at the beginning of the subscriber number for all numbers from the +247 national numbering plan (Geographic, Mobile and Non-geographic numbers). For example, a number that was previously +247 4XXXX is now +247 247 4XXXX.
According to ITU Communication of 08.V.2015, Sure South Atlantic Limited, Jamestown, announced the following update to the numbering plan for Ascension.
The length of geographical numbers increased from four (4) to five (5) digits and prefixed with the number "6".
The 4XXXX range reserved for mobile services.
The change to five-digit numbering to be implemented on 1 June 2015.
| Numbering plan (before 1 June 2026) | ||
|---|---|---|
| Area | Format of Subscriber Number | Remarks |
| 1XXXXX 2 | Non-geographic | |
| 4XXXX 1 | Mobile services | |
| 50XXXX-59XXXX | Non-geographic | |
| US Base | 62XXX 1 | Geographic |
| Travellers Hill & Airhead | 63XXX 1 | |
| Two Boats | 64XXX 1 | |
| Georgetown | 66XXX 1 | |
| 67XXX 1 | ||
| 8XXXXX 2 | Non-geographic | |
| 9XXXXX 2 | ||
| 0XXXXX 2 | ||
1: New 5-digit numbering
2: 6-digit numbering
| Numbering plan (before 1 June 2015) | ||
|---|---|---|
| Area | Format of subscriber number | Remarks |
| Georgetown | 10XX - 19XX | Operator Services |
| 50XX - 59XX | Special Services | |
| 60XX - 69XX | Telephone Services | |
| 70XX - 79XX | Spare | |
| 80XX - 89XX | Special Services | |
| 90XX - 99XX | Special Services | |
| Travellers Hill | 30XX - 35XX | Telephone Services |
| 36XX - 39XX | Spare | |
| Two Boats | 40XX - 43XX | Special Services |
| 44XX - 46XX | Telephone Services | |
| 47XX - 49XX | Special Services | |
| U.S. Base | 20XX - 29XX | Telephone Services |
03Additional References
- Network Dictionary Dong, J. 2007. pp548-549. Saratoga : Javvin Press
Sources and credits
This article is adapted from the Wikipedia article “Telephone numbers in Ascension Island”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
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