707 Area Code

 When the North American Numbering Plan become created with the aid of AT&T in 1947, the a long way northern part of California obtained region code 916, with the exclusion of the metropolis of Sacramento, which used place code 415. California area codes were reorganized geographically in 1950, so that 916 become assigned to a numbering plan area that comprised only the northeastern component from the Sierra Nevada to the Central Valley. The coastal region to the west become assigned place code 415. With this transformation, Sacramento become also modified to area code 916.

On March 1, 1959, numbering plan location 415 became divided in a flash-reduce (without permissive dialing length) in which the northern a part of the numbering plan place (Solano County and north thereof) acquired vicinity code 707, which became California's 8th area code (along with 213, 415, 916, 714, 408, 805, and 209), and the last new region code in the nation till 619 changed into delivered in 1982.

It isn't best the most effective this kind of place codes in no way to have required relief, however it's also the handiest one in all California's thirteen authentic-format vicinity codes (i.E., location codes with a 0 or 1 as their middle digit, the others being 310, 510, 818 and 909, all of which, further to 619, were brought decades after 707's debut) now not to require comfort from a "new layout" region code (those with 2–eight as their middle digit, which had been added beginning in 1995 when the NANP ran out of the unique layout NPAs), notwithstanding explosive growth inside the place, especially its southern component, as well as the proliferation of mobile phones and pagers.

When location code 530 become cut up from area code 916 on November 1, 1997, the Dixon region was renumbered from place code 916 to 707 and switched from the Sacramento neighborhood get entry to and delivery region (LATA) into the San Francisco LATA.

In 1999, a 3-manner, -section break up of the area code 707 became scheduled via Pacific Bell,[1] such that a new area code (627) would have served maximum of Napa and Sonoma Counties and small quantities of Marin and Mendocino Counties, at the same time as any other new region code (369) might have served Solano County, in addition to a small part of Napa County, beginning in December 2000 and October 2001, respectively. However, because of the achievement of range pooling in maintaining numbering assets, the California Public Utilities Commission cancelled these moves on July 27, 2000.

707 Area Code

Prior to October 2021, area code 707 had cellphone numbers assigned for the relevant office code 988. In 2020, 988 became certain nationwide as a dialing code for the National Suicide Prevention Lifeline, which created a war for exchanges that permit seven-digit dialing. This area code was therefore scheduled to transition to 10-digit dialing through October 24, 2021.[2] infotakeaway