Call signs in the United Kingdom

The society's former patron was Prince Philip, Duke of Edinburgh, and it represents the interests of the UK's licensed radio amateurs.

The International Telecommunication Union has assigned the United Kingdom the following call sign blocks for all radio communication, broadcasting or transmission:[7] While not directly related to call signs, the International Telecommunication Union (ITU) further has divided all countries assigned amateur radio prefixes into three regions; the United Kingdom is located in ITU Region 1.

Regional two-letter prefixes are assigned according to the following table:[10] Ofcom reserves the right to issue temporary special event call signs to licensed amateurs holding a full licence.

For instance GB75RD was a special event sign for the 75th anniversary of the Reading and District Amateur radio club.

[14] To celebrate the wedding of HRH Prince Harry and Miss Meghan Markle, the RSGB agreed with Ofcom an NoV to authorise the temporary use of the Regional Secondary Locator 'R' after the United Kingdom call sign prefix.