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Telephone numbers are of variable length. Local numbers are supported from landlines. Numbers can be dialled with a '0'-lead prefix that denotes either a geographical region or another service. Mobile phone numbers have distinct prefixes that are not geographic, and are portable between providers.
Company logo on porch of 17 & 19 Newhall Street, Birmingham (former Central exchange) National Telephone Company (NTC) was a British telephone company from 1881 until 1911, which brought together smaller local companies in the early years of the telephone. Under the Telephone Transfer Act 1911 it was taken over by the General Post Office (GPO ...
As of 2020, 52 exchanges still have five-digit subscriber numbers of which a dozen places also have unusually long STD codes. One area with a long STD code retains four-digit local numbering (see Telephone Numbers in the United Kingdom for examples).
The ten millionth telephone exchange line was installed in the United Kingdom. The Keyphone was market trailed in nine areas of the country. Some 3,000 instruments were involved in the trial.
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.
Feb 7, 2021 · File:Map of the Telephone Dialling Codes in the United Kingdom.png. Size of this preview: 467 × 600 pixels. Other resolutions: 187 × 240 pixels | 374 × 480 pixels | 598 × 768 pixels | 797 × 1,024 pixels | 1,594 × 2,048 pixels | 4,349 × 5,587 pixels.
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Numbers beginning 01 or 02 are normal phone numbers for home and business telephone lines. These numbers are always split into two parts: The area code comes first, and is linked to a specific part of the country. For example, the 020 area code is for London and the 0121 code is for Birmingham.
