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This is a list of telephone area codes in the state of Missouri. The area codes are allocated within the North American Numbering Plan (NANP). The two original area codes for Missouri in 1947 were 314 and 816. Area code 417 was split off from 816 in 1950, and the other area codes followed more than 40 years later, due to the proliferation of ...
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.
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Pages in category "Lists of United States area codes" The following 52 pages are in this category, out of 52 total. ... List of Missouri area codes; List of Montana ...
Contact us; Contribute Help; Learn to edit; Community portal; Recent changes; Upload file; Search. ... List of Missouri area codes; 0–9. Area codes 314 and 557 ...
Upon its establishment as one of the original 86 area codes in 1947, area code 816 designated the western part of Missouri. bordering with Arkansas, Illinois, Iowa, Kansas, Nebraska, and Oklahoma. The numbering plan area was reduced in 1951 and 1997, and converted to an overlay complex with area code 975 in 2002.
The area code split became effective at day end of January 7, 1996, with a permissive dialing period commencing until July 7, 1996, during which the new numbering plan area could be dialed with both area codes. Although area code splits were intended as long-term solutions, within only two years, 314 was close to exhaustion once again due to ...
Area codes of Missouri. Area code 660 is the telephone area code in the North American Numbering Plan (NANP) for the northern and western part of the U.S. state of Missouri.It surrounds the numbering plan area 816, from which it was split on October 12, 1997.