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An area code of three digits dialed after the country code determines the area served in the United States and its territories, Canada, and much of the Caribbean. Zone 2 uses two 2-digit codes (20, 27) and eight sets of 3-digit codes (21x–26x, 28x, 29x), mostly to serve Africa , but also Aruba , Faroe Islands , Greenland and British Indian ...
Mobile phones use geographic area codes (two digits): after that, all numbers assigned to mobile service have nine digits, starting with 6, 7, 8 or 9 (example: 55 15 99999–9999). 90 is not possible, because collect calls start with this number.
This is a list of international dialing prefixes used in various countries for direct dialing of international telephone calls.These prefixes are typically required only when dialling from a landline, while in GSM-compliant mobile phone (cell phone) systems, the symbol + before the country code may be used irrespective of where the telephone is used at that moment; the network operator ...
Area codes are also assigned for non-geographic purposes. The rules for numbering NPAs do not permit the digits 0 and 1 in the leading position. [1] Area codes with two identical trailing digits are easily recognizable codes (ERC). NPAs with 9 in the second position are reserved for future format expansion.
For international calls to Brazil, the international access code used in the calling country must be dialed (for example, 011 from the United States and Canada, 00 from Europe and most other countries, or the actual "+" sign from some mobile networks), then Brazil's country code 55, then the two-digit area code, then the local eight- or nine ...
DNS name of the two-letter country-code top-level domain. They follow ISO 3166-1 alpha-2, with some exceptions such as ".ac" for Ascension Island, ".eu" for the European Union, or ".uk" for United Kingdom of Great Britain and Northern Ireland instead of ".gb". ISO codes bv, bl, mf, sj, gb, and um are not used for country code top-level domains.
00 + Country Code + Destination Code + Subscriber Number. Calls to North America from anywhere in Armenia receive a substantial discount if preceded by a special code specific to each Armenian phone company. For example, if one makes a call from a Vivacell-MTS phone to North America and dials 77 first, one is charged 14 AMD per minute.
A country code is a short alphanumeric identification code for countries and dependent areas. Its primary use is in data processing and communications . Several identification systems have been developed.