Country Code: +247International Call Prefix: 00 Ascension Island does not share the same country code (+290) with the rest of St Helena.
To call in Ascension Island, the following format is used: yxxxx Calls inside Ascension Island +247 yxxxx Calls from outside Ascension Island According to ITU Communication of 08.V.2015, Sure South Atlantic Limited, Jamestown, announced the following update to the numbering plan for Ascension.
The 4XXXX range reserved for mobile services.
The change to five-digit numbering to be implemented on 1 June 2015.
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