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Area codes 318 and 457

Area codes 318 and 457 are telephone area codes in the North American Numbering Plan (NANP) for the northern and central parts of the U.S. state of Louisiana. Area code 318 was assigned in 1957 in an area code split of the 504 numbering plan area (NPA) to nearly all of the state west of the Mississippi River, stretching from the Gulf of Mexico north to…

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Map overview Semantic statistics

Area codes 318 and 457

Nodes72
Edges71
Triples17
Avg. degree1.97
Density0.027778
Components1

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Important terminology

area 318 code plan louisiana 457 numbering overlay calls dialing split central north telephone northern 1999 337 2025 shreveport monroe

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Shreveportinstance ofIt included major cities0.80text
Monroeinstance ofIt included major cities0.80text
Alexandriainstance ofIt included major cities0.80text
Lafayetteinstance ofIt included major cities0.80text
Lake Charles before the 1999 split.1999 splitinstance ofIt included major cities0.80text
creation of 337In 1999instance ofIt included major cities0.80text
the southern portion of the 318 numbering plan area was split off to create area code 337instance ofIt included major cities0.80text
Lake Charles before the 1999 splitinstance ofIt included major cities0.80text
9-1-1instance ofThree-digit services0.80text
9-8-8instance ofThree-digit services0.80text
2-1-1instance ofThree-digit services0.80text
3-1-1instance ofThree-digit services0.80text

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