Area codes 209 and 350 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of California. Their service area includes the northern San Joaquin Valley and Sierra Foothills, including Stockton, Modesto and Merced.
Area code 209 was created in an area code split of area code 916 in 1958. On November 14, 1998, the southern half of this numbering plan area received the assignment of area code 559.
On October 24, 2021, 209 was transitioned to ten-digit dialing despite not being part of an overlay complex at that time. The area code had telephone numbers assigned for the central office code 988, which was designated as a nationwide three-digit dialing code for the 988 Suicide & Crisis Lifeline in 2022. This created a conflict for all NPAs with central office code 988 that still permitted seven-digit dialing, requiring all such NPAs to transition to ten-digit dialing.
On November 28, 2022, the 209 numbering plan area was assigned a second area code, 350, to form an overlay complex to address the impending central office code exhaustion in 209 from growth in telecommunication services. Network preparation was expedited without permissive dialing period, since ten-digit dialing was already in effect.
Service area Counties Alpine, Amador, Calaveras, El Dorado, Mariposa, Merced, Sacramento, San Joaquin, Stanislaus, Tuolumne
Towns and cities Acampo, Big Oak Flat, Burson, Ceres, Chinese Camp, Coarsegold, Clements, Columbia, Crows Landing, Dardanelle, Delhi, Denair, El Portal, Empire, Escalon, Farmington, French Camp, Galt, Groveland, Hathaway Pines, Herald, Hickman, Hilmar, Holt, Hornitos, Hughson, Jamestown, Keyes, Kit Carson, La Grange, Lathrop, Le Grand, Linden, Lockeford, Lodi, Long Barn, Manteca, Mi Wuk Village, Midpines, Moccasin, Modesto, Mount Aukum, Mountain House, Newman, Oakdale, Patterson, Pinecrest, Planada, Ripon, River Pines, Riverbank, Salida, Santa Rita Park, Sheep Ranch, Sonora, Soulsbyville, Standard, Stevinson, Stockton, Thornton, Tracy, Tuolumne, Turlock, Twain Harte, Vernalis, Victor, Waterford, Westley, Wilseyville, Woodbridge, and Yosemite National Park
Alpine County Kirkwood
Amador County
Amador City Buckhorn Buena Vista Drytown Fiddletown Ham's Station Ione Jackson Martell Pine Grove Pioneer Plymouth Sutter Creek Volcano
Calaveras County
Altaville Angels Camp Arnold Avery Calaveritas Campo Seco Cave City Copperopolis Dorrington Douglas Flat Forest Meadows Fourth Crossing Glencoe Jenny Lind Jesus Maria Mokelumne Hill Mountain Ranch Murphys Paloma Rail Road Flat Rancho Calaveras San Andreas Sandy Gulch Vallecito Valley Springs Wallace West Point
Mariposa County
Bootjack Buck Meadows Catheys Valley Coulterville Mariposa Wawona Yosemite Valley
Merced County
Atwater Ballico Cressey Delhi Dos Palos El Nido Gustine Hilmar Le Grand Livingston Los Banos Merced Planada Santa Nella Snelling South Dos Palos Winton
Sacramento County Galt Herald
San Joaquin County
August Banta Country Club Escalon Farmington French Camp Garden Acres Kennedy Lathrop Lincoln Village Linden Lockeford Lodi Manteca Morada Mountain House North Woodbridge Ripon South Woodbridge Stockton Taft Mosswood Tracy Victor
Stanislaus County
Bystrom Ceres Del Rio Denair East Oakdale Empire Grayson Hickman Hughson Keyes Knights Ferry Modesto Newman Oakdale Patterson Riverbank Riverdale Park Salida Shackelford Turlock Waterford West Modesto Westley
Tuolumne County
Bret Harte Chinese Camp Columbia Confidence East Sonora Groveland-Big Oak Flat Jamestown Mi-Wuk Village Moccasin Mono Vista Phoenix Lake-Cedar Ridge Pine Mountain Lake Sonora Soulsbyville Strawberry Tuolumne City Twain Harte
See also List of California area codes
References
External links