Country Code: +247International 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. https://www.sure.co.sh/assets/Banner-Links/PRESS-RELEASE-Disruption-to-Calling-Ascension-Island-26-February-2026.pdf
Calling 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
Ascension Island numbering plan Numbering plan (effective of 1 April 2026) Area Format of Subscriber Number Remarks247 4XXXX Mobile services247 5XXXXNon-geographicUS Base247 62XXX GeographicTravellers Hill & Airhead247 63XXX Two Boats247 64XXX Georgetown247 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 Remarks1XXXXX 2Non-geographic4XXXX 1Mobile services50XXXX-59XXXXNon-geographicUS Base62XXX 1GeographicTravellers Hill & Airhead63XXX 1Two Boats64XXX 1Georgetown66XXX 167XXX 18XXXXX 2Non–geographic9XXXXX 20XXXXX 2 1: New 5-digit numbering
2: 6-digit numbering Numbering plan (before 1 June 2015) Area Format of subscriber number RemarksGeorgetown 10XX - 19XX Operator Services50XX - 59XX Special Services60XX - 69XX Telephone Services70XX - 79XX Spare80XX - 89XX Special Services90XX - 99XX Special ServicesTravellers Hill 30XX - 35XX Telephone Services36XX - 39XX SpareTwo Boats 40XX - 43XX Special Services44XX - 46XX Telephone Services47XX - 49XX Special Services U.S. Base 20XX - 29XX Telephone Services
See also Telephone numbers in the United Kingdom Telephone numbers in Saint Helena and Tristan da Cunha
References
Additional References
Network Dictionary Dong, J. 2007. pp548–549. Saratoga : Javvin Press