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  1. In the United Kingdom, telephone numbers 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 assigning telephone numbers to subscriber stations.

  2. This is a list of dialling codes for telephones in the United Kingdom. Dialling codes are the basis for the national telephone numbering plan. They are prefixed to all telephone numbers, generally depending on the type of number and its geographic location. The numbering plan is maintained by Ofcom, which is an independent ...