Area code 559 is a telephone area code 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. The area code was placed in service in 1998, when its services area was split from that of area code 209.
In 1997, the California-Nevada Code Administration (CNCA) determined that telephone number demand in the area exceeded normal forecasts, and placed area codes 209, 213, 310, 408, 619, 805, and 818 in jeopardy status of exhausting central office codes before normal relief could be implemented, triggering special conservation measures. [1]
As a result, area code 559 was created in an area code split of the 209 numbering plan area on November 14, 1998. [2] The new area code was assigned to the southern part of 209. A permissive dialing period was maintained until May 15, 1999. Although this provided general relief, the California-Nevada Code Administration (CNCA) indicated that area code 209 remained in jeopardy status for further relief actions. [2]
Like many other regions that had experienced area code changes and additions during the first boom of wireless devices, such as cellular telephones and pagers in the 1990s, both 559 and 209 were in the early planning stages of relief, potentially creating the need for introduction of further new area codes. Yet by 2002, telephone number pooling was enforced for the 209 and 559 central offices, reducing the size of telephone number blocks allocated to carriers from 10,000 to 1,000 numbers.
Area code 559 is expected to exhaust in 2025. For relief, an overlay complex with area code 357 is planned which will necessitate the implementation of ten-digit dialing (1+10-digit for landlines) in the central San Joaquin Valley. [3]
The area code serves the Central California counties of Fresno, Madera, Kings, and Tulare.
The major cities within the service region are Fresno, Coalinga, Clovis, Madera, Sanger, Reedley, Dinuba, Selma, Tulare, Visalia, Hanford, Lemoore, Porterville, Avenal, and Kingsburg.
Fresno County, officially the County of Fresno, is a county located in the central portion of the U.S. state of California. As of the 2020 Census, the population was 1,008,654. The county seat is Fresno, the fifth-most populous city in California.
Tulare County is a county located in the U.S. state of California. As of the 2020 census, the population was 473,117. The county seat is Visalia. The county is named for Tulare Lake, once the largest freshwater lake west of the Great Lakes. Drained for agricultural development, the site is now in Kings County, which was created in 1893 from the western portion of the formerly larger Tulare County.
The San Joaquin Valley is the southern half of California's Central Valley, an area drained by the San Joaquin River. Famed as a major breadbasket, the San Joaquin Valley is an important source of food, producing a significant part of California's agricultural output.
Area codes 805 and 820 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of California. The numbering plan area (NPA) includes most or all of the counties of San Luis Obispo, Santa Barbara, Ventura, and the southernmost portions of Monterey County. 805 was split from area code 213 in 1957, and area code 820 was added to the NPA in 2018, creating an area code overlay.
Area codes 920 and 274 are telephone area codes in the North American Numbering Plan (NANP) for a large area of eastern Wisconsin. Area code 920 was created on July 26, 1997, in a split of area code 414, one of the original North American area codes of 1947. 274 was added to the same numbering plan area (NPA) on May 5, 2023 to create an area code overlay.
College of the Sequoias (COS) is a public two-year community college in Visalia, California. The college is named for the Giant Sequoia trees native to the nearby Sierra Nevada mountain range.
Central California is generally thought of as the middle third of the U.S. state, of California, north of Southern California, which includes Los Angeles, and south of Northern California, which includes San Francisco. It includes the northern portion of the San Joaquin Valley, part of the Central Coast, the central hills of the California Coast Ranges and the foothills and mountain areas of the central Sierra Nevada.
California's 21st congressional district is a congressional district in the U.S. state of California. It is located in the San Joaquin Valley and includes parts of Fresno County and Tulare County. Cities in the district include the majority of Fresno, the north side of Visalia, and all of Sanger, Selma, Kingsburg, Parlier, Reedley, Orange Cove, Dinuba, Orosi, Cutler, Farmersville, Woodlake and Exeter. The district is currently represented by Democrat Jim Costa.
Immanuel Schools are Mennonite schools located in Reedley, California and serving the surrounding area, including Dinuba and Kingsburg. The schools are officially dedicated to provide a religious private education on their campuses, which include a K-6 Immanuel Elementary school, a 7-8 Immanuel Junior High School, and a 9-12 Immanuel High School. Their mascot is the eagle and their school colors are red, white, and blue.
The Tulare Merchants were a minor league baseball team based in Tulare, California. In 1910 and 1911, the Merchants played exclusively as members of the Class D level San Joaquin Valley League, winning the 1911 league championship in their final season of play.
The Cross Valley Corridor is a proposed passenger rail service in the California Central Valley, connecting Visalia, Hanford, Porterville, and surrounding cities to each other and California High-Speed Rail's planned Kings–Tulare Regional Station.
The Superior Court of California, County of Tulare, also known as the Tulare County Superior Court, is the branch of the California superior court with jurisdiction over Tulare County.
Tulare County Area Transit (TCaT) was the county-operated bus agency providing service between cities and local community circulator routes in Tulare County, California; transit within the larger cities was provided by agencies operated by those communities, including Dinuba (DART), Porterville (Porterville Transit), Tulare (TIME), and Visalia (Visalia Transit); connections are provided to Delano (DART) in neighboring Kern County.
The Tulare County Regional Transit Agency (TCRTA) is a joint powers agency formed by all the cities in Tulare County, California (except Visalia) alongside the county government on August 17, 2020. It operates the public transportation systems within and connecting the respective member agencies, including the legacy systems Dinuba Area Regional Transit (DART, in Dinuba), Porterville Transit (PT, Porterville), Tulare InterModal Express (TIME, in the City of Tulare), and Tulare County Area Transit (TCaT, intercity routes). It is the largest single public transit agency in Tulare County.
Fresno County Rural Transit Agency (FCRTA) is the primary bus agency providing intra- and inter-city routes for smaller cities and unincorporated rural communities in Fresno County, California since 1979, including Coalinga, Firebaugh, Fowler, Huron, Kerman, Kingsburg, Mendota, Orange Cove, Reedley, Sanger, San Joaquin, and Selma. FCRTA riders may transfer to Fresno Area Express service within the county seat of Fresno, and FCRTA has additional transfer points connecting to neighboring agencies in Fresno, Kings, and Tulare counties, including Clovis Transit Stageline, Kings Area Regional Transit, and Dinuba Connection.
The Visalia District was a railway line in California's San Joaquin Valley that ran from Corcoran, California to Calwa, California. The line was originally built by the San Francisco and San Joaquin Valley Railroad and later acquired by the Atchison, Topeka and Santa Fe Railway.
| North: 209 | ||
| West: 805/820, 831 | 559 | East: 442/760 |
| South: 661 |