Area codes 559 and 357
Telephone area codes in California
Area codes 559 and 357
Area codes 559 and 357 are telephone area codes in the North American Numbering Plan for the central San Joaquin Valley in central California. The numbering plan area includes the counties of Fresno, Madera, Kings, and Tulare, an area largely coextensive with the Fresno and Visalia-Porterville metropolitan areas. Area code 559 was placed in service in 1998, when its services area was split from that of area code 209. 357 was added to form an overlay complex in 2025.
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