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Worldwide distribution of country calling codes. Regions are coloured by first digit. Telephone country codes, but also sometimes referred to as "country dial-in codes", or historically "international subscriber dialing" (ISD) codes in the U.K., are telephone number dialing prefixes for reaching subscribers in foreign countries or areas via international telecommunication networks.
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 within the system are generally organized geographically. All telephone numbers are 9 digits long (but always prefixed by 0 for calls within South Africa), except for certain Telkom special services. When dialed from another country, the "0" is omitted and replaced with the appropriate international access code and the country code +27.
List of ISO country codes (ISO 3166) ITU country code (International Telecommunication Union) List of country calling codes E.164; Mobile country code E.212; Maritime identification digits; List of ITU letter codes (radiocommunication division) UIC country code (International Union of Railways) List of GS1 country codes; List of NATO country codes
Country Code International Call Prefix Main article Central Africa Angola +244: 00: Telephone numbers in Angola Cameroon +237: 00: Telephone numbers in Cameroon Central African Republic +236: 00: Telephone numbers in the Central African Republic Chad +235: 00: Telephone numbers in Chad Democratic Republic of the Congo +243: 00
Quick Take: List of Scam Area Codes. More than 300 area codes exist in the United States alone which is a target-rich environment for phone scammers.
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International calls require at least one additional prefix to be dialing before the country code, to connect the call to international circuits, the international call prefix. When printing telephone numbers this is indicated by a plus-sign ( + ) in front of a complete international telephone number, per recommendation E164 by the ITU.