In the island of
Saint Helena and the archipelago of
Tristan da Cunha
Tristan da Cunha (), colloquially Tristan, is a remote group of volcanic islands in the South Atlantic Ocean. It is the most remote inhabited archipelago in the world, lying approximately from Cape Town in South Africa, from Saint Helena a ...
, telecommunications are administered by
Sure Saint Helena. There is a fixed five-digit number plan, and the country calling code is +290.
Ascension Island is also part of the
British Overseas Territory of
Saint Helena, Ascension and Tristan da Cunha
Saint Helena, Ascension and Tristan da Cunha is a British Overseas Territory located in the South Atlantic and consisting of the island of Saint Helena, Ascension Island and the archipelago of Tristan da Cunha including Gough Island. Its name wa ...
, but it has a
separate calling code and numbering scheme.
2013 change to numbering plan
From 1 October 2013, all existing 4-digit telephone numbers on St Helena were to be prefixed by a '2' to move from a 4-digit to a 5-digit numbering plan. The change in numbering resulted after the increased demand for new telephone services while also providing a platform for the future introduction of a cellular network on the island.
Allocations
Tristan da Cunha
Although Tristan da Cunha shares the +290 code with St Helena, residents have access to the
Foreign and Commonwealth Office Telecommunications Network, provided by
Global Crossing
Global Crossing was a telecommunications company that provided computer networking services and operated a tier 1 carrier. It maintained a large backbone network and offered peering, virtual private networks, leased lines, audio and video con ...
. This uses a
London
London is the capital and List of urban areas in the United Kingdom, largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary dow ...
020
020 is the national dialling code for London in the United Kingdom. All subscriber numbers within the area code consist of eight digits and it has capacity for approaching 100 million telephone numbers. The code is used at 170 telephone exch ...
numbering range, meaning that numbers are accessed via the
UK telephone numbering plan.
Tristan da Cunha Post Office
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See also
*Telephone numbers in the United Kingdom
Telephone numbers in the United Kingdom are administered by the Office of Communications ( Ofcom). For this purpose, Ofcom established a telephone numbering plan, known as the ''National Telephone Numbering Plan'', which is the system for as ...
*Telephone numbers in Ascension Island
Country Code: +247International Call Prefix: 00
Ascension Island does not share the same country code (+290) with the rest of St Helena.
Calling formats
To call in Ascension Island, the following format is used:
yxxxx Calls inside Ascens ...
References
Saint Helena
Saint Helena-related lists
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