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The state operated with two area codes until May 3, 1992, when area code 706 was created for the two separate areas outside of the metro Atlanta area. Due to complaints from exurban residents who were to be put in 706, they were moved back into 404, which makes every new area code added to the metro area run out of numbers sooner.
All central office prefixes of area code 404 are assigned to service providers, the last having been issued in October 2013. [5] Prefixes in 678 and 770 have also all been allocated, leaving only 470 central office codes available, although previously-used numbers are always available for reassignment to new customers.
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]
Telephone numbers in Georgia may refer to: Telephone numbers in Georgia (U.S. state) Telephone numbers in Georgia (country) This page was last edited on 30 ...
International Call Prefix: Telephone numbers in South Georgia and the South Sandwich Islands. +500 4XXXX Number range Usage References This ...
Users can switch carriers while keeping number and prefix (so prefixes are not tightly coupled to a specific carrier). 7 Claro 8: Instituto Costarricense de Electricidad (Kölbi) Croatia +385: 91: 9: A1 Hrvatska: Due to Mobile number portability the prefix of an existing number does not determine the carrier. Any new number will follow the ...
However, since mobile number portability was introduced in Georgia on 15 February 2011, the links are no longer certain. Telephone prefixes originally distributed to mobile operators are listed below. On 20 June 2011, the digit 5 was added to the prefixes for mobile operators. [1] For example, prefix 77 was changed to 577.
A telephone prefix is the first set of digits after the country, and area codes of a telephone number. In the North American Numbering Plan countries (country code 1), it is the first three digits of a seven-digit local phone number, the second three digits of the 3-3-4 scheme. In other countries, both the prefix and the number may have ...