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In the island of Saint Helena and the archipelago of Tristan da Cunha, 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, 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 from an increased demand for new telephone services and also provided 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. This uses a London 020 numbering range, meaning that numbers are accessed via the UK telephone numbering plan.

See also

• Telephone numbers in the United Kingdom
• Telephone numbers in Ascension Island

References

1. Sure South Atlantic Ltd. (29 August 2013). "Change to 5 Digit Telephone Numbering Plan" (PDF). The Sentinel (advert). South Atlantic Media Services. p. 19. Archived from the original (PDF) on 9 March 2017. Retrieved 29 August 2013.
2. "Don't forget your number 2's" (PDF). The Sentinel. South Atlantic Media Services. 20 June 2013. p. 7. Archived from the original (PDF) on 9 March 2017. Retrieved 29 August 2013.
3. "ITU Operational Bulletin" (PDF) (1030). International Telecommunication Union. 15 June 2013: 11–12. Retrieved 8 January 2021. {{cite journal}}: Cite journal requires |journal= (help)
4. ^ "Frequently Asked Questions". Sure Saint Helena. Archived from the original on 24 September 2015. Retrieved 28 August 2015.
5. "Global Crossing extends FCO network to Tristan da Cunha". Telecom Paper. 22 May 2006. Archived from the original on 28 July 2013.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
6. Tristan da Cunha Post Office

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