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In 1947, the American Telephone and Telegraph Company (AT&T) devised the first nationwide telephone numbering plan and assigned the original North American area codes. The state of California was divided into three numbering plan areas (NPAs) with distinct area codes: 213, 415, and 916, for the southern, central, and northern parts of the state ...
Numbering plan areas in California (blue) and border states. This map is clickable; click on any region shown to visit the page for those area codes.
In addition to being the sole area code in the Space Coast region around the Kennedy Space Center, this is the only partial overlay area code in North America 323: 213: Central Los Angeles, incl. Downtown L.A. and Hollywood: 326: 937: Southwest Ohio: 331: 630: Western suburbs of Chicago: 332, 646 , 917: 212
2023: returned to the pool of area codes available for future area code relief; 457: Louisiana (Shreveport–Bossier City, Monroe, Alexandria, Fisher, Tallulah, and most of northern Louisiana) September 25, 2025 [3] to be overlaid on 318; previously a fictitious area code assigned to identify Naked DSL/Dry Loop and dedicated data lines in ...
Download QR code; Print/export ... This is a list of regions of California, organized by location. ... San Luis Obispo Area. Five Cities; Santa Barbara Area.
Originally part of area code 408. 916/279 — Sacramento County and the Sacramento suburbs in western Placer and El Dorado Counties. One of the three original area codes in California, formerly covered all areas now within 530. 925 — Outer East Bay (Concord, Pittsburg, Walnut Creek, San Ramon, Pleasanton and Livermore). Originally part of ...
Numbering plan areas in California (blue) and border states. This map is clickable; click on any region shown to visit the page for those area codes.Area codes 408 and 669 are shown in red. Area codes 408 and 669 are telephone area codes in the North American Numbering Plan (NANP) in the U.S. state of California.
cities; towns, unincorporated communities; counties, and other recognized places in the U.S. state of California. Information on the number and names of counties in which the place lies, and its lower and upper ZIP code bounds, if applicable are also included.