When the American Telephone and Telegraph Company (AT&T) created a universal North American telephone numbering plan for Operator Toll Dialing in 1947, Missouri was divided into two numbering plan areas (NPAs), which received the area codes 314 and 816. Area code 314 identified the eastern part of the state, from the northeast corner of the state at the Illinois border along a southwestern line near Columbia and Jefferson City to the center of the state, and continuing southeast into the east side of the West Plains area to the Arkansas state line. The largest city of the area code was St. Louis on the Mississippi river in the east.
By 1995, the telephone subscriber base experience substantial growth, threatening the exhaustion of the numbering pool.[1] Relief planning entailed the division of the numbering plan area to create a new area code, 573, for most areas outside of the St. Louis metropolitan area, which would retained area code 314. 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.
On May 1, 2022, the Missouri Public Service Commission (MPSC) approved an all-services distributed overlay plan for the 573 service area. On June 17, 2022, the NANP Administrator assigned area code 235 for the relief action, beginning with a permissive dialing period of six months on August 26, 2023.[2]
area, code, telephone, area, code, north, american, numbering, plan, nanp, most, eastern, half, state, missouri, outside, immediate, louis, area, including, state, capital, jefferson, city, well, columbia, cape, girardeau, hannibal, rolla, sikeston, numbering,. Area code 573 is a telephone area code in the North American Numbering Plan NANP for most of the eastern half of the U S state of Missouri outside the immediate St Louis area including the state capital of Jefferson City as well as Columbia Cape Girardeau Hannibal Rolla and Sikeston The numbering plan area NPA extends across half of the width of the state with the northeastern tip near the northeastern corner of the state the Lake of the Ozarks at the western tip and Doniphan as the southwestern tip It also serves all of southeastern Missouri including the Missouri Bootheel area and areas adjacent to the Mississippi River The area code was created on January 7 1996 in a split of area code 314 which was reduced to the St Louis metropolitan area in Missouri The largest cities in area code 573 are Columbia home to the University of Missouri and Jefferson City the state capital Contents 1 History 2 Service area 3 References 4 External linksHistory EditWhen the American Telephone and Telegraph Company AT amp T created a universal North American telephone numbering plan for Operator Toll Dialing in 1947 Missouri was divided into two numbering plan areas NPAs which received the area codes 314 and 816 Area code 314 identified the eastern part of the state from the northeast corner of the state at the Illinois border along a southwestern line near Columbia and Jefferson City to the center of the state and continuing southeast into the east side of the West Plains area to the Arkansas state line The largest city of the area code was St Louis on the Mississippi river in the east By 1995 the telephone subscriber base experience substantial growth threatening the exhaustion of the numbering pool 1 Relief planning entailed the division of the numbering plan area to create a new area code 573 for most areas outside of the St Louis metropolitan area which would retained area code 314 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 On May 1 2022 the Missouri Public Service Commission MPSC approved an all services distributed overlay plan for the 573 service area On June 17 2022 the NANP Administrator assigned area code 235 for the relief action beginning with a permissive dialing period of six months on August 26 2023 2 Service area EditMajor Cities Columbia Cape Girardeau Farmington Hannibal Jefferson City Rolla Poplar Bluff Sikeston Other Cities Camdenton Centralia Dexter Fulton Hermann Jackson Mexico St James Sullivan WaynesvilleReferences Edit NANP Split of 314 Missouri Numbering Plan Area NPA PDF Bellcore Letter IL 95708 015 1995 08 31 Retrieved 2022 12 07 Planning Letter PL 596 NPA 235 and 573 All Services Overlay Missouri PDF NANPA 2022 06 17 Retrieved 2022 12 07 External links EditNANPA area code map of MissouriMissouri area codes 314 557 417 573 636 660 816 North 660 217West 660 417 816 area code 573 East 636 618 270 731 314 557South 417 870Illinois area codes 217 224 847 309 312 331 630 618 708 773 779 815 872Kentucky area codes 270 364 502 606 859Tennessee area codes 423 615 629 731 865 901 931Arkansas area codes 479 501 870Coordinates 38 30 N 92 00 W 38 5 N 92 0 W 38 5 92 0 Retrieved from https en wikipedia org w index php title Area code 573 amp oldid 1132055684, wikipedia, wiki, book, books, library,
