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  2. 0151 - Wikipedia

    en.wikipedia.org/wiki/0151

    Cite this page; Get shortened URL; Download QR code; Print/export Download as PDF; Printable version; ... 0151 may refer to: The telephone dialling code for ...

  3. List of dialling codes in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/List_of_dialling_codes_in...

    Brand new area code allocation post-BigNumber for a new town, chosen to be significantly different from the area codes of the adjacent areas of Gravesend and Dartford. [14] 01988 — Wigtown (WT8) 01989 — Ross-on-Wye, Wye Valley (WV9) 01990 — unused; 0990 was Wentworth (WW0) – numbers were transferred to 0344 [notes 14]

  4. Telephone numbers in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_the...

    STD codes are two, three, four or, exceptionally, five digits long (after the initial zero). Regions with shorter area codes, typically large cities, permit the allocation of more telephone numbers as the local number part has more digits. Local customer numbers are four to eight digits long. The total number of digits is ten or, very rarely, nine.

  5. List of transponder codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Transponder_Codes

    External ARTCC subsets. (Blocks of discrete codes except that xx00 is used as a non-discrete code after all discrete codes are assigned.) [3] 7000 ICAO: VFR standard squawk code when no other code has been assigned. [1] EASA countries: Code that pilot shall set when not receiving air traffic services, unless otherwise prescribed by the ...

  6. History of telephone numbers in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/History_of_telephone...

    On PhONEday in 1995, 0387 became 01387 and 03873 became 013873 and these codes are still in use today. The remainder of the "mixed" area code allocations and their history are detailed in the table below. Of the 11 area codes freed up for alternative use in the 1980s, only 5 were actually re-used for other services.

  7. Big Number Change - Wikipedia

    en.wikipedia.org/wiki/Big_Number_Change

    Some widespread misunderstandings about area codes came about with the Big Number Change, most notably with London area codes. There is a widespread but erroneous assumption that London has several area codes – 0203, 0204, 0207 and 0208 – whereas, in fact, it has just one: 020. Similar misunderstandings came about with a few other area codes.

  8. PhONEday - Wikipedia

    en.wikipedia.org/wiki/PhONEday

    PhONEday had cleared area codes from 02 to 09 of all geographic allocations by converting 9-digit numbers to 10-digit 01 numbers (and, in parts of at least 47 area codes, 8-digit numbers to 9-digit 01 numbers). After PhONEday, all pre-existing 9-digit mobile, non-geographic, premium rate, personal and pager numbers from 02 to 09 remained in place.

  9. ITU prefix - Wikipedia

    en.wikipedia.org/wiki/ITU_prefix

    Linked country codes are from ISO 3166-1. Series allocated to an international organization. Provisional allocation in accordance with No. S19.33: "Between radiocommunication conferences, the Secretary-General is authorized to deal with questions relating to changes in the allocation of series of call signs, on a provisional basis, and subject ...