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  1. 559/357 Area Codes - California Public Utilities Commission

    Dec 14, 2023 · The 559 area code is in central California in the San Joaquin Valley. The 559 area code includes all or portions of Fresno, Madera, Mariposa, Merced, Tulare, and Kings …

  2. CPUC Reminds Consumers of the New Dialing Procedure and the …

    Feb 14, 2025 · The 559 area code serves communities such as Clovis, Coalinga, Fresno, Madera, Porterville, Reedley, Selma, and Visalia, as well as some unincorporated areas. The new 357 …

  3. CPUC Provides More Numbers for 559 Area Code

    Dec 19, 2023 · The 559 area code covers central California in the San Joaquin Valley, including all or portions of Fresno, Madera, Mariposa, Merced, Tulare, and Kings counties. It serves …

  4. CPUC Highlights New Dialing Procedure for Customers in 559 …

    Apr 25, 2024 · The 559/357 area code overlay will not require customers to change their existing area code. However, the overlay will require customers with the 559 and 357 area codes to …

  5. Area Codes and Numbering

    The new area code to overlay the 559 area code is the 357 area code. 559 area code webcast 559 area code presentation 530/837 Area Code The 530 area code is running out of available …

  6. Area Code Frequently Asked Questions

    An area code overlay is a form of area code change that typically adds a second area code to the same geographic region. Therefore, multiple area codes can co-exist within the same …

  7. The 209 was split in 1997 which created the 559 area code. Implementation of thousand-block number pooling helped to extend the life of the area code. The 209 now has a limited number …

  8. 3.2. The 559 Area Code troduced the 559 NPA in November 1998. As previously noted, the 559 NPA is located in centr California in the San Joaquin Valley. It includes all or portions of …

  9. 209 Area Code - California Public Utilities Commission

    In 1997, the 209 area code was split to form the 559 area code. The area served by the 209 area code currently includes Amador, Calaveras, Mariposa, Merced, San Joaquin, Stanislaus, and …

  10. Consumer Protection and Safety Division Utilities Safety and Reliability Branch