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Toll-free telephone numbers in the North American Numbering Plan have the area code prefix 800, 833, 844, 855, 866, 877, and 888. Additionally, area codes 822, 880 through 887, and 889 are reserved for toll-free use in the future. 811 is excluded because it is a special dialing code in the group NXX for various other purposes.
Country codes are defined by the International Telecommunication Union (ITU) in ITU-T standards E.123 and E.164. The prefixes enable international direct dialing (IDD). Country codes constitute the international telephone numbering plan. They are used only when dialing a telephone number in a country or world region other than the caller's.
In 1947, the American Telephone and Telegraph Company (AT&T) devised the first nationwide telephone numbering plan and assigned the original North American area codes. The state of California was divided into three numbering plan areas (NPAs) with distinct area codes: 213, 415, and 916, for the southern, central, and northern parts of the state ...
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.
670 was the former country code for the islands; 671: Guam (includes Andersen Air Force Base) July 1, 1997: Created for membership in NANP; 671 was the former country code for the island; 672: British Columbia, and the isolated border town of Hyder, Alaska, US May 4, 2019: overlaid on 604, 250, 778, and 236 [15] 2025: to be overlaid by 257; 673 ...
before 1997: reached via IDDD using country code 670: 1997: assigned area code 670 Guam: before 1997: reached via IDDD using country code 671: 1997: assigned area code 671 American Samoa: before October 1, 2004: reached via IDDD using country code 684: 2004: assigned area code 684 Sint Maarten: before September 30, 2011: reached via IDDD using ...
Numbering plan areas in California (blue) and border states. This map is clickable; click on any region shown to visit the page for those area codes.Area codes 408 and 669 are shown in red. Area codes 408 and 669 are telephone area codes in the North American Numbering Plan (NANP) in the U.S. state of California.
Area code 626 is a telephone area code in the North American Numbering Plan for most of the San Gabriel Valley in the U.S. state of California. The numbering plan area also comprises nearby areas in the northeastern portion of Los Angeles County, California , including Arcadia , Monrovia , El Monte , most of Pasadena and West Covina .