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| | area codes resource page - telephone area codes |
 | | Telephone numbers in Australia consist of a single digit area code and eight-digit local numbers, the first four of which generally specify the exchange, and the final four a line at that exchange. |
 | | In the United Kingdom, area codes are — including the leading '0' which is dropped when calling UK numbers from overseas — three, four, five or six digits long, with larger towns and cities having shorter area codes permitting a larger number of telephone numbers in the ten or eleven digits used. |
 | | When telephone numbers in the US were standardized in the mid-20th century, they were made seven digits long, including a two-digit prefix, the latter expressed as letters rather than numbers. |
| www.bizhisto.com /Ar-to-Bo/area_codes.php (7065 words) |
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