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 Number range Area Comments 1XX – 19XX non-geographic PSTN Service Numbers 9XX non-geographic Emergency Services 1XXXX Reserved Reserved for future Telephone Services 20XXX PSTN Services 21XXX PSTN Services 22XXX Jamestown, St Helena PSTN Services 23XXX - 25XXX PSTN Services 260XX – 261XX Information Service 262XX non-geographic Voice Messaging 263XX non-geographic Flexible Access 264XX - 29XXX PSTN Services 3XXXX Reserved for future Telephone Services 4XXXX Reserved for future Telephone Services 5XXXX non-geographic Mobile 6XXXX non-geographic Mobile 7XXXX Reserved for future Telephone Services 8XXXX Tristan Da Cunha Reserved for future Telephone Services 9XXXX Reserved for future Telephone Services
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.Tristan da Cunha Post Office
See also Telephone numbers in the United Kingdom Telephone numbers in Ascension Island
References