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The London area contained 80 exchanges, and full conversion was to take many years. [3] Until the late 1960s, some outer London exchanges did not offer direct dialling, and their numbers could be identified in the directory by being printed in light type, unlike normal exchanges, whose first three letters appeared in bold type.
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]
The new area code retains both of the old area code names. A diagram showing the principle is shown on page 9 of Oftel's telephone numbering guide [ 32 ] and these areas are shown in the table below. [ 33 ]
Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]
However, in Director telephone areas such as the London telephone area, the changes permitted many new exchange codes to be issued that did not correspond to letters representing the geographic locations. As '1' was also available for the 'B' and 'C' digits, this allowed many more exchange codes such as 211, 212, 221 to be used.
Look at the area code: Start by comparing the phone number’s area code to the list of area codes you should never answer. If it’s on the list, there’s a good chance there’s a scammer on ...
The 020 area code fully replaced older area codes for London on 22 April 2000, following multiple telephone number changes during the 1990s. [notes 1] As is the case for other codes in the UK, the 020 area code may also be used for services without any physical presence in the area, such as private networks or virtual numbering. [1]
A phone number communicates a lot --and if you dig a little deep, an area code contains information about the economic situation of its residents, too. Richest and poorest area codes in the US ...