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In 1950, the boundary between 213 and 415 was realigned toward the north, requiring the southern portion of the Central Valley, including Bakersfield, to change from area code 415 to 213. As a result of southern California's rapid expansion of telephone service during the second half of the 20th century, area code 213 was split five times in ...
originally split off from 213 to form a ring around downtown Los Angeles and the city of Montebello on June 13, 1998; in August 2017, the boundary between 213 and 323 was erased to form an overlay. On November 1, 2024, it was overlaid by area code 738. 341: overlay with 510: started service on July 22, 2019. 350: overlay with 209
213: California (central area of Los Angeles) 1947: created for the southern third of California; ... area code 387 is reserved as a fifth code for the region; 438:
A new area code overlay is coming to the Greater Los Angeles area once defined by the 213 area code. And then the 323 area code. And soon, the 738 area code.
The red fields are the NPAs that hosted the Regional Centers for toll-switching established in the General Toll Switching Plan of 1929: [2] New York City (212), Los Angeles (213), Dallas (214), Chicago (312), St. Louis (314), and San Francisco (415) in the multi-NPA states, and in Denver (303) and Atlanta (404) in states with just a single area ...
Area code 818 was created in a split from area code 213 on January 7, 1984. On June 14, 1997, 818 was reduced in size to create a separate numbering plan area (NPA) for most of the San Gabriel Valley with area code 626. On May 18, 2009, area code 818 was overlaid with area code 747.
1947: Area codes 313, 517 and 616 are three of the original 86 area codes in the North American Numbering Plan. 1961: Area code 906 was created in the first split of 616. 1993: Area code 810 was created in the first split of 313. 1997: Area code 734 was created in the second split of 313. and area code 248 was created in the first split of 810.
Area code 310 was created in a split from area code 213 on November 2, 1991. On January 25, 1997, area code 310 was split, creating area code 562 for the southeast portion of Los Angeles County and a large portion of Orange County.