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The operator is obtained via 100 from landlines, while directory enquiries, formerly 192, is now provided in the 118xxx range, (not to be confused with 0118, the area code for Reading.) e.g. 118 212, 118 800, 118 500, 118 118, by different companies. International operator assistance is reached through 155 .
19 de jul. de 2023 · The first telephone exchange in the United Kingdom was established in London in 1879. Initially, phone numbers were not standardised, and users could request numbers of varying lengths. However, as the number of subscribers increased, a standardised numbering system became essential to ensure efficient communication.
The UK network became totally digital on 11th March 1998 with the closure of the last electronic TXE4 exchanges at Leigh-on-Sea and Selby and their conversion to System Y (AXE 10) and System X respectively. The first Dial-a-Disc service was opened in Leeds. Change to all-figure telephone numbers commenced in Director areas. Datel 600 introduced.
The history of UK phone numbers dates back to the early days of telecommunications, when the first telephone networks were established across the country. In the past, phone numbers were shorter and simpler, often consisting of just a few digits that were manually connected by operators.
How phone numbers changed through the 20th Century in the UK. The style of telephone numbers changed over time as technology improved and made better communication possible. This page traces changes in telephone numbers from early single-numbers through letters-with-numbers to all-long-numbers.
Telephone numbers in the United Kingdom have a flexible structure that reflects their historical demands, starting from many independent companies through a nationalised near-monopoly, to a system that supports many different services, including cellular phones, which were not envisaged when the system was first built.
There is a set numbering plan for phone numbers within the United Kingdom, which is regulated by the Office of Communications ( Ofcom ), which replaced the Office of Telecommunications ( Oftel) in 2003.
