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The northeastern portion, including Redding, Yreka and Mount Shasta, became area code 530, reducing the 916 numbering plan area to Sacramento and its immediate area. On the same day, Dixon was reassigned from 916 to 707. This split left 916 as the only one of the original 86 area codes that no longer covers any part of its original area. [1]
Much of the City of Los Angeles and several inner suburbs: October 1947; split numerous times since then, including a split to form code 323 on June 13, 1998; in August 2017, the boundary between 213 and 323 was erased to form an overlay. 279: Sacramento and most of the Sacramento metro: Folsom, Roseville; Sacramento County and southern Placer ...
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 ...
Mobile phones use geographic area codes (two digits): after that, all numbers assigned to mobile service have nine digits, starting with 6, 7, 8 or 9 (example: 55 15 99999–9999). 90 is not possible, because collect calls start with this number.
Area code 209 was created in an area code split of area code 415 on October 26, 1957. 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 1+10-digit dialing despite not being part of an overlay complex at that time.
The additional demands for PCS and cellular phone numbers helped necessitate the 831/408 area code split, the 650/415 split, and the earlier 510/415 split. Part of the previous dialing plan included a mass calling prefix for radio station contests, introduced in the 1960s because some contests put unacceptable loads on the Bay Area's telephone ...
This map is clickable; click on any region shown to visit the page for those area codes.Area codes 415 and 628 are shown in red. Area codes 415 and 628 are telephone area codes in the North American Numbering Plan (NANP) for the city of San Francisco and its northern suburbs in Marin County (across the Golden Gate), and the northeast corner of ...
On March 1, 1959, numbering plan area 415 was divided in a flash-cut (without permissive dialing period) in which the northern part of the numbering plan area (Solano County and north thereof) received area code 707, which was California's eighth area code (along with 213, 415, 916, 714, 408, 805, and 209), and the last new area code in the ...