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Coordinates: 39°48′N 123°36′W / 39.8°N 123.6°W / 39.8; -123.6
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{{short description|Area code for northwestern California, United States}}
{{short description|Area codes in northwestern California, United States}}
{{California area codes image map|707}}
{{California area codes image map|707}}
'''Area code 707''' is a [[California]] [[telephone]] [[area code]] that was split from [[area code 916]] on March 1, 1959. It covers the northwestern portion of the state of [[California]]. It serves part of the northern [[San Francisco Bay Area]], as well as the [[North Coast (California)|North Coast]] and the northwestern portion of the state. Major cities in the area code include [[Napa, California|Napa]], [[Sebastopol, California|Sebastopol]], [[Vallejo, California|Vallejo]], [[Benicia, California|Benicia]], [[Fairfield, California|Fairfield]], [[Santa Rosa, California|Santa Rosa]], [[Windsor, California|Windsor]], [[Healdsburg]], [[Rohnert Park]], [[Petaluma, California|Petaluma]], [[Fort Bragg, California|Fort Bragg]], [[Crescent City, California|Crescent City]], [[Eureka, California|Eureka]], [[Clearlake, California|Clearlake]], [[Vacaville, California|Vacaville]], [[Ukiah, California|Ukiah]], and northwestern California. In addition, when [[area code 916]] split into [[area code 530]] on November 1, 1997, the [[Dixon, California|Dixon]] area moved from area code 916 to 707 and also from the Sacramento [[Local access and transport area|LATA]] into the San Francisco LATA.
'''Area codes 707 and 369''' are telephone [[area code]]s in the [[North American Numbering Plan]] (NANP) for the northwestern part of the [[U.S. state]] of [[California]]. The area codes serve part of the northern [[San Francisco Bay Area]], as well as the [[North Coast (California)|North Coast]]. Major cities in the area codes include [[Napa, California|Napa]], [[Sebastopol, California|Sebastopol]], [[Vallejo, California|Vallejo]], [[Benicia, California|Benicia]], [[Fairfield, California|Fairfield]], [[Santa Rosa, California|Santa Rosa]], [[Windsor, California|Windsor]], [[Healdsburg]], [[Rohnert Park]], [[Petaluma, California|Petaluma]], [[Fort Bragg, California|Fort Bragg]], [[Rio Vista, California|Rio Vista]], [[Crescent City, California|Crescent City]], [[Eureka, California|Eureka]], [[Clearlake, California|Clearlake]], [[Vacaville, California|Vacaville]], [[Dixon, California|Dixon]], and [[Ukiah, California|Ukiah]]. 707 was created by a split of [[area code 415]] on March 1, 1959. Area code 369 was added to the numbering plan area (NPA) on February 1, 2023, to form an [[overlay plan|overlay numbering plan]] in the service area.


==History==
When 707 came online, it became California's eighth area code (along with [[Area code 213|213]], [[Area code 415|415]], [[Area code 916|916]], [[Area code 714|714]], [[Area code 408|408]], [[Area code 805|805]], and [[Area code 209|209]]), and the last new area code in the state until [[Area code 619|619]] was added in 1982. Currently, it is not only the only one of these area codes never to have required relief, but it is also the only one of California's 13 "original format" area codes (i.e., area codes with a "0" or "1" as their middle digit, the others being [[Area code 310|310]], [[Area code 510|510]], [[Area code 818|818]] and [[Area code 909|909]], all of which, in addition to 619, were introduced decades after 707's debut) not to require relief from a "new format" area code (those with 2-8 as their middle digit, which were introduced beginning in 1995 when the NANP ran out of the original format NPAs), despite explosive growth in the area, particularly its southern portion, as well as the proliferation of cell phones and pagers. As of 1Q 2020, 707 is not projected to need area code relief until at least mid-2025. (In 1999 a 3-way two-phase split of the 707 area code was scheduled such that a new 627 area code would serve most of Napa and Sonoma Counties as well as small portions of Marin and Mendocino Counties while a new 369 area code would serve Solano County as well as a small portion as Napa County beginning in December of 2000 and October of 2001, respectively. However, due to [[number pooling]], the California Public Utilities Commission cancelled both of these splits on July 27, 2000.) As of 2018, area code 707 has been forecast to exhaust in the latter half of 2025.<ref>https://nationalnanpa.com/reports/2018-2_NPA_Exhaust_Projections_Final.pdf</ref>
When the [[AT&T Corporation|American Telephone and Telegraph Company]] (AT&T) devised the first comprehensive telephone numbering plan for the North American continent in 1947, the far northern part of California received [[area code 916]], with the exclusion of the city of Sacramento, which used [[area code 415]]. California area codes were reorganized geographically in 1950, so that 916 was assigned to a numbering plan area that comprised only the northeastern part from the [[Sierra Nevada]] to the [[Central Valley (California)|Central Valley]]. The coastal area to the west was assigned [[area code 415]]. With this change, Sacramento was also changed to area code 916.


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 [[Area code 213|213]], 415, 916, [[Area code 714|714]], [[Area code 408|408]], [[Area code 805|805]], and [[Area code 209|209]]), and the last new area code in the state until [[Area code 619|619]] was added in 1982.
==List of cities and towns==

===[[Del Norte County, California|Del Norte County]]===
When [[area code 530]] was split from area code 916 on November 1, 1997, the [[Dixon, California|Dixon]] area was renumbered from area code 916 to 707 and switched from the Sacramento [[local access and transport area]] (LATA) into the San Francisco LATA.

707 was the last of California's thirteen area codes with only ''0'' or ''1'' in middle position, the others being [[Area code 310|310]], [[Area code 510|510]], [[Area code 818|818]] and [[Area code 909|909]], all of which, in addition to 619, were introduced decades after 707's debut) to require relief from a "new format" area code (those with 2–8 as their middle digit, which were introduced beginning in 1995 when the NANP ran out of the original format NPAs), despite explosive growth in the area, particularly its southern portion, as well as the proliferation of cell phones and pagers.

In 1999, a three-way, two-phase split of area code 707 was scheduled by Pacific Bell<ref>{{cite web|url=https://www.att.com/images/areacodes/707_split_map.pdf|title=707 - 627 - 360 Area Code Split|publisher=AT&T|access-date=2020-07-17}}</ref> such that a new area code (627) would have served most of Napa and Sonoma counties and small portions of Marin and Mendocino counties, while another new area code (369) would have served Solano County as well as a small portion of Napa County, beginning in December 2000 and October 2001, respectively. However, due to the success of [[number pooling]] in preserving numbering resources, the California Public Utilities Commission cancelled these actions on July 27, 2000. Still, after twenty more years of continued growth in the region, it was determined that 707 would indeed require relief. On August 1, 2022, the NANP Administrator set the effective implementation date of the overlay of 707 by the new 369 NPA to February 1, 2023.<ref>{{cite web
|publisher=NANPA
|title=Planning Letter No. 599 – NPA 369 and 707 All-Services Overlay (California)
|date=2022-08-01
|access-date=2023-01-14
|url=https://www.nationalnanpa.com/planning_letters/PL_599.pdf
}}</ref>

Prior to October 2021, area code 707 had telephone numbers assigned for the [[central office code]] 988. In 2020, ''988'' was designated nationwide as a dialing code for the [[National Suicide Prevention Lifeline]], which created a conflict for exchanges that permit [[seven-digit dialing]]. This area code was therefore scheduled to transition to [[ten-digit dialing]] by October 24, 2021.<ref name="pl556">{{cite web|url=https://nationalnanpa.com/pdf/PL_556.pdf|date=2021-01-08|publisher=North American Numbering Plan Administrator |title=Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Hotline)|access-date=2021-03-09}}</ref>

==Service area==
===Del Norte County===
{{Div col|colwidth=19em}}
{{Div col|colwidth=19em}}
*[[Bertsch-Oceanview, California|Bertsch-Oceanview]]
*[[Bertsch-Oceanview, California|Bertsch-Oceanview]]
Line 13: Line 30:
*Fort Dick
*Fort Dick
*[[Gasquet, California|Gasquet]]
*[[Gasquet, California|Gasquet]]
⚫
*[[Hiouchi, California|Hiouchi]]
*[[Klamath, California|Klamath]]
*[[Klamath, California|Klamath]]
*Northcrest
*Northcrest
Line 19: Line 37:
{{colend}}
{{colend}}


===[[Humboldt County, California|Humboldt County]]===
===Humboldt County===
{{Div col|colwidth=19em}}
{{Div col|colwidth=19em}}
*[[Alderpoint, California|Alderpoint]]
*[[Alderpoint, California|Alderpoint]]
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*[[Kneeland, California|Kneeland]]
*[[Kneeland, California|Kneeland]]
*[[Korbel, Humboldt County, California|Korbel]]
*[[Korbel, Humboldt County, California|Korbel]]
⚫
*[[Mad River, California|Mad River]]
*[[Manila, California|Manila]]
*[[Manila, California|Manila]]
*[[McKinleyville, California|McKinleyville]]
*[[McKinleyville, California|McKinleyville]]
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*[[Weott, California|Weott]]
*[[Weott, California|Weott]]
*[[Westhaven-Moonstone, California|Westhaven-Moonstone]]
*[[Westhaven-Moonstone, California|Westhaven-Moonstone]]
*[[Willow Creek, California|Willow Creek]]
*[[Whitethorn, California|Whitethorn]]
*[[Whitethorn, California|Whitethorn]]
{{colend}}
{{colend}}


===[[Lake County, California|Lake County]]===
===Lake County===
{{Div col|colwidth=19em}}
{{Div col|colwidth=19em}}
*[[Clearlake, California|City of Clearlake]]
*[[Clearlake, California|Clearlake]]
*[[Clearlake Oaks, California|Clearlake Oaks]]
*[[Clearlake Oaks, California|Clearlake Oaks]]
*[[Clearlake Park, California|Clearlake Park]]
*[[Clearlake Park, California|Clearlake Park]]
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{{colend}}
{{colend}}


===[[Marin County, California|Marin County]]===
===Marin County===
{{Div col|colwidth=19em}}
{{Div col|colwidth=19em}}
*[[Dillon Beach, California|Dillon Beach]]
*[[Dillon Beach, California|Dillon Beach]]
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{{colend}}
{{colend}}


===[[Mendocino County, California|Mendocino County]]===
===Mendocino County===
{{Div col|colwidth=19em}}
{{Div col|colwidth=19em}}
*[[Albion, California|Albion]]
*[[Albion, California|Albion]]
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*[[Comptche, California|Comptche]]
*[[Comptche, California|Comptche]]
*[[Covelo, California|Covelo]]
*[[Covelo, California|Covelo]]
*Dos Rios
*[[Dos Rios, California|Dos Rios]]
*[[Elk, Mendocino County, California|Elk]]
*[[Elk, Mendocino County, California|Elk]]
*[[Fort Bragg, California|Fort Bragg]]
*[[Fort Bragg, California|Fort Bragg]]
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{{colend}}
{{colend}}


===[[Napa County, California|Napa County]]===
===Napa County===
{{Div col|colwidth=19em}}
{{Div col|colwidth=19em}}
*[[Aetna Springs, California|Aetna Springs]]
*[[Aetna Springs, California|Aetna Springs]]
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{{colend}}
{{colend}}


===[[Solano County, California|Solano County]]===
===Solano County===
{{Div col|colwidth=19em}}
{{Div col|colwidth=19em}}
*[[Benicia, California|Benicia]]
*[[Benicia, California|Benicia]]
*[[Birds Landing, California|Birds Landing]]
*[[Birds Landing, California|Birds Landing]]
*[[Collinsville, California|Collinsville]]
*[[Collinsville, California|Collinsville]]
*[[Cordelia, California|Cordelia]]
*[[Dixon, California|Dixon]]
*[[Dixon, California|Dixon]]
*[[Elmira, California|Elmira]]
*[[Elmira, California|Elmira]]
Line 175: Line 194:
{{colend}}
{{colend}}


===[[Sonoma County, California|Sonoma County]]===
===Sonoma County===
{{Div col|colwidth=19em}}
{{Div col|colwidth=19em}}
*[[Asti, California|Asti]]
*[[Asti, California|Asti]]
Line 212: Line 231:
*[[Penngrove, California|Penngrove]]
*[[Penngrove, California|Penngrove]]
*[[Petaluma, California|Petaluma]]
*[[Petaluma, California|Petaluma]]
*Rio Dell
*[[Rio Dell, Sonoma County, California|Rio Dell]]
*[[Rio Nido, California|Rio Nido]]
*[[Rio Nido, California|Rio Nido]]
*[[Rohnert Park, California|Rohnert Park]]
*[[Rohnert Park, California|Rohnert Park]]
Line 231: Line 250:
{{colend}}
{{colend}}


===[[Trinity County, California|Trinity County]]===
===Trinity County===
*[[Mad River, California|Mad River]]
*[[Ruth, California|Ruth]]
*[[Ruth, California|Ruth]]
*[[Zenia, California|Zenia]]
*[[Zenia, California|Zenia]]
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* {{Area code footer|Map=CA}}
* {{Area code footer|Map=CA}}


{{Area code box | State = CA | This = area code 707
{{Area code box | State = CA | This = area code 707/369
| N = [[area code 541|541]]
| N = [[area codes 541 and 458|541/458]]
| S = [[area code 415|415]], [[area codes 510 and 341|510/341]], [[area code 925|925]]
| S = [[area codes 415 and 628|415/628]], [[area codes 510 and 341|510/341]], [[area code 925|925]]
| E = [[area code 530|530]], [[area code 916|916]]
| E = [[area code 530|530]], [[area codes 916 and 279|916/279]]
| W = [[Pacific Ocean]]
| W = [[Pacific Ocean]]
|S1 = OR}}
|S1 = OR}}
Line 261: Line 281:
[[Category:Solano County, California|707]]
[[Category:Solano County, California|707]]
[[Category:Sonoma County, California|707]]
[[Category:Sonoma County, California|707]]
[[Category:Northern California|707]]
[[Category:Northern California]]
[[Category:Area codes in the United States|707]]
[[Category:Area codes in the United States|707]]
[[Category:1959 establishments in California]]

Latest revision as of 21:23, 7 October 2024

458/541775702928442/760916/279530707209559831805661858909951619213323707916/279415650510/341925408209831805661442/760310/424747/818626909951949562657/714
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 code 707 is shown in red.

Area codes 707 and 369 are telephone area codes in the North American Numbering Plan (NANP) for the northwestern part of the U.S. state of California. The area codes serve part of the northern San Francisco Bay Area, as well as the North Coast. Major cities in the area codes include Napa, Sebastopol, Vallejo, Benicia, Fairfield, Santa Rosa, Windsor, Healdsburg, Rohnert Park, Petaluma, Fort Bragg, Rio Vista, Crescent City, Eureka, Clearlake, Vacaville, Dixon, and Ukiah. 707 was created by a split of area code 415 on March 1, 1959. Area code 369 was added to the numbering plan area (NPA) on February 1, 2023, to form an overlay numbering plan in the service area.

History

[edit]

When the American Telephone and Telegraph Company (AT&T) devised the first comprehensive telephone numbering plan for the North American continent in 1947, the far northern part of California received area code 916, with the exclusion of the city of Sacramento, which used area code 415. California area codes were reorganized geographically in 1950, so that 916 was assigned to a numbering plan area that comprised only the northeastern part from the Sierra Nevada to the Central Valley. The coastal area to the west was assigned area code 415. With this change, Sacramento was also changed to area code 916.

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 state until 619 was added in 1982.

When area code 530 was split from area code 916 on November 1, 1997, the Dixon area was renumbered from area code 916 to 707 and switched from the Sacramento local access and transport area (LATA) into the San Francisco LATA.

707 was the last of California's thirteen area codes with only 0 or 1 in middle position, the others being 310, 510, 818 and 909, all of which, in addition to 619, were introduced decades after 707's debut) to require relief from a "new format" area code (those with 2–8 as their middle digit, which were introduced beginning in 1995 when the NANP ran out of the original format NPAs), despite explosive growth in the area, particularly its southern portion, as well as the proliferation of cell phones and pagers.

In 1999, a three-way, two-phase split of area code 707 was scheduled by Pacific Bell[1] such that a new area code (627) would have served most of Napa and Sonoma counties and small portions of Marin and Mendocino counties, while another new area code (369) would have served Solano County as well as a small portion of Napa County, beginning in December 2000 and October 2001, respectively. However, due to the success of number pooling in preserving numbering resources, the California Public Utilities Commission cancelled these actions on July 27, 2000. Still, after twenty more years of continued growth in the region, it was determined that 707 would indeed require relief. On August 1, 2022, the NANP Administrator set the effective implementation date of the overlay of 707 by the new 369 NPA to February 1, 2023.[2]

Prior to October 2021, area code 707 had telephone numbers assigned for the central office code 988. In 2020, 988 was designated nationwide as a dialing code for the National Suicide Prevention Lifeline, which created a conflict for exchanges that permit seven-digit dialing. This area code was therefore scheduled to transition to ten-digit dialing by October 24, 2021.[3]

Service area

[edit]

Del Norte County

[edit]

Humboldt County

[edit]

Lake County

[edit]

Marin County

[edit]

Mendocino County

[edit]

Napa County

[edit]

Solano County

[edit]

Sonoma County

[edit]

Trinity County

[edit]

See also

[edit]

References

[edit]
  1. ^ "707 - 627 - 360 Area Code Split" (PDF). AT&T. Retrieved 2020-07-17.
  2. ^ "Planning Letter No. 599 – NPA 369 and 707 All-Services Overlay (California)" (PDF). NANPA. 2022-08-01. Retrieved 2023-01-14.
  3. ^ "Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Hotline)" (PDF). North American Numbering Plan Administrator. 2021-01-08. Retrieved 2021-03-09.
[edit]
California area codes: 209/350, 213/323, 310/424, 408/669, 415/628, 510/341, 530, 559, 562, 619/858, 626, 650, 661, 707/369, 714/657, 760/442, 805/820, 818/747, 831, 909/840, 916/279, 925, 949, 951
North: 541/458
West: Pacific Ocean area code 707/369 East: 530, 916/279
South: 415/628, 510/341, 925
Oregon area codes: 503/971, 541/458

39°48′N 123°36′W / 39.8°N 123.6°W / 39.8; -123.6

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