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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.
International Telecommunications Public Correspondence Service (ITPCS) was an International Telecommunication Union (ITU) proposal for some form of individual-based international numbering plan that would be accessed using telephone numbers from the 991 range.
For instance, you receive a text from +1-555-123-4567, a number not in your contacts. Unsolicited contact: The text arrives unexpectedly, often with a friendly or urgent tone. Example: "Hey!
Coast guard – 118; [50] Information about emergencies – #7119 free call; Information about emergencies – #9110 pay call; Roadside assistance – #8139. 112 and 911 redirect to 110 on mobile phones and telephones that are present at all United States military installations .
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. [5] xx 7: xx 8: xx 9: British Indian Ocean Territory +246: 380 7 387 British Virgin Islands +1: 284: 10
The number is presented starting the country calling code. This is called the globalized format of an E.164 number, and is defined in the Internet Engineering Task Force RFC 2806 . [ 6 ] The international calling prefix is a trunk code to reach an international circuit in the country of call origination.
not in use; available for toll-free assignment: Codes 880 through 882 were used (until 1 April 2004) to allow international customers to access toll-free numbers they otherwise could not by paying the international portion of the toll. 880 was paired with 800, 881 with 888, and 882 with 877. [21] 888: toll-free telephone service: March 1, 1996 ...
0 was traditionally the number dialled for the operator for long-distance calls before subscriber trunk dialling (STD) was introduced, and so was retained as a prefix for direct-dialled calls. In the majority of areas, the area code still corresponds to the original STD letter code.