Frequency allocations and designations
Frequency allocations are settled on a world-wide basis by WRC, the World Radio Conference, previously known as WARC, the World Administrative Radio Conference. The Conference, which is convened as necessary (usually every two or three years), is held under the aegis of the International Telecommunications Union (ITU), which is itself an organ of the United Nations. Implementation is down to individual countries, not all of which are represented at the WRC, while not all of those that are observe all of the allocations.
Annexe 1: Radio frequency spectrum management in the UK (part of Region 1)
In the UK, frequencies are allocated by Ofcom (The Office of Communications). ...