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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.
Conservation measures, such as number pooling, mitigated the immediate need for relief. [5] More than twenty years after that announcement, area code 557 was overlaid on August 12, 2022, as the available numbers in 314 neared exhaustion. [6] Prior to October 2021, area code 314 had telephone numbers assigned for the central office code 988.
Missouri (Columbia, Jefferson City, Hannibal, Cape Girardeau, Farmington, Lake of the Ozarks, Poplar Bluff, and most of eastern Missouri excluding the St. Louis metropolitan area) March 24, 2024: overlaid on 573; 236: British Columbia (all, and the isolated border town of Hyder, Alaska, US) June 1, 2013: overlaid on 604, 250, and 778 [2] 2019 ...
The average population of Missouri's counties is 53,880; St. Louis County is the most populous (987,059), and Worth County is the least (1,907). The average land area is 599 sq mi (1,550 km 2 ). The largest county is Texas County (1,179 sq mi, 3,054 km 2 ) and the smallest is St. Louis city (61.9 sq mi, 160 km 2 ).
Carroll County is a county located in the U.S. state of Missouri.As of the 2020 census, the county had a population of 8,495. [1] Its county seat is Carrollton. [2] The county was organized on January 2, 1833, from part of Ray County and named for Charles Carroll of Carrollton, a signer of the Declaration of Independence.
DeKalb County is a county located in the northwest portion of the U.S. state of Missouri. As of the 2020 census, the population was 11,029. [1] Its county seat is Maysville. [2] The county was organized February 25, 1845 [3] and named for General Johann de Kalb, [4] Baron de Kalb, of the Revolutionary War.
Area codes of Missouri. Area code 636 is a telephone area code in North American Numbering Plan (NANP) for the east-central part of the U.S. state of Missouri, comprising mainly the western suburbs of St. Louis.
Its phone system is fully integrated into the Swiss system. 42 – formerly assigned to Czechoslovakia, later to its breakup successors (CZ, SK) until 1997; 420 – Czech Republic; 421 – Slovakia; 422 – unassigned; 423 – Liechtenstein (formerly at 41 (75)) 424 – unassigned; 425 – unassigned; 426 – unassigned; 427 – unassigned; 428 ...