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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 codes in northwestern California, United States}}
<!-- This imagemap is for the current areacode map of CA, when new area codes are added, the clickmap needs to be updated, and should be repeated on all California Area Code pages.
{{California area codes image map|707}}
Recommended for use: https://toolserver.org/~dapete/ImageMapEdit/ImageMapEdit.html?en -->
'''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.
<imagemap>
Image:Area_code_707.svg|The map above is clickable; click on an area code to go to the page for that area code. The area code in red is Area Code 707; all others in blue are California area codes.|right|350px|thumb


==History==
rect 10 2 165 27 [[Area codes 458 and 541|458/541]]
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.
poly 132 27 133 126 238 223 239 188 159 117 159 27 130 28 [[Area code 775|775]]
poly 237 189 236 221 276 260 281 254 275 222 237 188 [[Area code 702|702]]
poly 275 226 279 244 283 254 274 255 284 265 301 287 293 292 292 305 293 310 284 320 290 330 294 336 294 340 290 342 288 349 306 355 311 371 328 370 329 265 276 226 [[Area code 928|928]]
poly 287 350 287 343 295 339 288 330 287 320 291 312 290 302 301 287 284 259 158 149 137 156 144 176 137 182 143 188 161 186 190 245 182 251 183 255 188 256 199 265 213 266 219 280 222 282 233 276 257 290 257 297 251 299 255 313 253 321 238 319 234 325 238 331 264 349 289 353 100 123 [[Area codes 442 and 760|442/760]]
poly 101 125 85 137 85 153 100 143 105 135 104 126 [[Area code 916|916]]
poly 153 148 133 153 125 139 108 141 107 132 103 125 81 136 57 73 64 70 48 60 33 41 49 42 52 29 132 30 132 133 154 147 [[Area code 530|530]]
poly 25 28 18 81 30 106 40 153 85 150 85 142 79 137 54 75 59 69 51 68 34 43 44 36 48 29 24 26 [[Area code 707|707]]
poly 124 140 105 143 87 154 84 165 102 195 117 203 125 193 142 178 125 144 [[Area code 209|209]]
poly 142 248 127 230 122 197 124 190 137 184 141 192 159 191 187 244 181 249 173 248 154 245 144 248 [[Area code 559|559]]
poly 73 203 100 194 120 203 128 231 97 239 81 216 89 199 [[Area code 831|831]]
poly 81 243 128 232 145 244 137 269 158 279 167 274 177 274 192 286 173 301 128 309 83 244 [[Area code 805|805]]
poly 192 288 180 274 166 273 158 276 139 270 142 247 152 243 180 248 178 254 183 257 194 270 210 270 213 286 192 286 [[Area code 661|661]]
poly 207 327 233 326 238 334 214 340 214 328 [[Area code 858|858]]
poly 220 286 232 278 253 290 252 297 232 304 232 291 224 287 [[Area code 909|909]]
rect 234 301 253 322 [[Area code 951|951]]
poly 251 351 212 350 216 341 239 333 253 349 [[Area code 619|619]]
rect 395 315 412 332 [[Area code 213|213]]
poly 368 289 375 370 409 370 450 334 453 312 420 275 400 281 394 295 382 287 367 292 [[Area code 323|323]]
poly 213 19 254 81 288 97 309 81 329 103 373 110 382 102 392 93 407 88 428 79 431 56 424 21 214 22 [[Area code 707|707]]
poly 426 23 431 48 431 75 409 89 410 93 423 96 439 96 450 68 458 55 455 22 426 23 [[Area code 916|916]]
poly 250 85 262 84 285 98 304 88 304 81 309 80 321 100 328 105 324 116 329 130 338 145 345 168 348 177 313 172 264 156 248 86 [[Area code 415|415]]
poly 309 174 332 248 371 239 371 227 380 227 386 216 381 214 359 191 342 177 313 175 [[Area code 650|650]]
poly 328 124 341 109 368 112 360 117 363 132 375 145 395 160 405 182 408 205 400 215 379 209 362 191 360 168 349 168 339 141 332 117 [[Area code 510|510]]
poly 367 110 357 117 368 138 375 146 394 158 409 203 435 205 435 194 431 190 426 155 414 148 415 145 422 136 427 98 403 88 366 111 [[Area code 925|925]]
poly 435 207 410 208 400 216 388 218 383 225 373 231 375 242 379 243 401 260 410 255 413 246 441 247 439 225 436 220 433 206 [[Area code 408|408]]
poly 456 270 441 251 441 226 436 216 437 195 432 187 424 153 415 150 415 141 421 141 427 96 440 88 457 52 457 268 [[Area code 209|209]]
poly 325 253 371 240 400 261 408 257 414 249 441 247 451 270 345 274 326 252 [[Area code 831|831]]
poly 14 461 15 422 50 377 94 375 131 455 117 467 117 474 109 478 105 487 86 480 57 503 13 465 [[Area code 805|805]]
poly 90 379 119 428 197 422 227 425 244 424 261 423 252 377 91 378 [[Area code 661|661]]
poly 255 380 261 423 261 438 285 426 306 429 316 437 331 435 334 429 332 419 390 409 385 497 402 567 404 610 336 610 308 601 284 625 286 629 418 628 418 382 253 380 [[Area codes 442 and 760|442/760]]
poly 62 494 71 628 178 629 164 598 189 549 189 529 178 530 167 496 105 493 101 487 87 479 80 476 60 499 [[Area codes 310 and 424|310/424]]
poly 118 431 133 454 118 464 116 475 104 488 108 497 166 498 177 495 181 496 188 491 198 487 189 474 188 469 197 457 199 423 117 430 [[Area codes 747 and 818|747/818]]
poly 198 424 223 423 233 424 261 425 261 448 244 456 237 463 232 479 233 504 244 519 230 520 223 514 219 506 207 505 188 472 196 461 202 424 [[Area code 626|626]]
poly 390 410 333 420 334 435 312 434 309 432 287 425 264 437 262 449 245 456 237 474 234 496 235 509 246 519 256 518 267 524 299 523 320 500 339 498 362 504 382 498 389 411 [[Area code 909|909]]
poly 271 525 302 523 319 500 339 498 362 505 382 497 399 566 405 608 340 609 308 602 323 570 308 557 292 555 292 545 268 526 [[Area code 951|951]]
poly 278 626 312 600 322 573 310 560 294 557 282 558 272 551 268 552 264 559 247 561 227 581 282 625 [[Area code 949|949]]
poly 189 560 191 530 200 522 219 515 233 522 217 552 221 557 210 579 188 558 [[Area code 562|562]]
poly 216 580 224 557 220 553 233 520 247 522 247 520 258 520 293 542 291 553 283 557 272 549 267 552 264 557 248 561 226 582 218 574 [[Area codes 657 and 714|657/714]]


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.
desc bottom-left
</imagemap>


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.
'''Area code 707''' is a [[California]] [[telephone]] [[area code]] that was split from [[area code 415]] on March 1, 1959. It covers the northwestern portion of the state of [[California]]. It serves the far northern fringe of the [[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.


When 707 came online, it was the last new area code in California until [[Area code 619|619]] in 1982, and completed California's ''stable eight''{{citation needed|date=March 2016}} (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]]). Furthermore, it is the only one of those eight area codes that has not been further split. This is despite explosive growth in the area, particularly its southern portion, as well as the proliferation of cell phones and pagers. However, 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.
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
==List of cities and towns==
|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>
===[[Del Norte County, California|Del Norte County]]===

==Service area==
===Del Norte County===
{{Div col|colwidth=19em}}
*[[Bertsch-Oceanview, California|Bertsch-Oceanview]]
*[[Bertsch-Oceanview, California|Bertsch-Oceanview]]
*[[Crescent City, California|Crescent City]]
*[[Crescent City, California|Crescent City]]
Line 59: Line 30:
*Fort Dick
*Fort Dick
*[[Gasquet, California|Gasquet]]
*[[Gasquet, California|Gasquet]]
*[[Hiouchi, California|Hiouchi]]
*[[Klamath, California|Klamath]]
*[[Klamath, California|Klamath]]
*Northcrest
*Northcrest
*[[Pelican Bay State Prison]]
*[[Pelican Bay State Prison]]
*[[Smith River, California|Smith River]]
*[[Smith River, California|Smith River]]
{{colend}}


===[[Humboldt County, California|Humboldt County]]===
===Humboldt County===
{{Div col|colwidth=19em}}
{{MultiCol|auto}}
*[[Alderpoint, California|Alderpoint]]
*[[Alderpoint, California|Alderpoint]]
*[[Alton, California|Alton]]
*[[Alton, California|Alton]]
Line 78: Line 51:
*[[Eureka, California|Eureka]]
*[[Eureka, California|Eureka]]
*[[Fernbridge, California|Fernbridge]]
*[[Fernbridge, California|Fernbridge]]
{{ColBreak}}
*[[Ferndale, California|Ferndale]]
*[[Ferndale, California|Ferndale]]
*[[Fieldbrook, California|Fieldbrook]]
*[[Fieldbrook, California|Fieldbrook]]
Line 90: Line 62:
*[[Kneeland, California|Kneeland]]
*[[Kneeland, California|Kneeland]]
*[[Korbel, Humboldt County, California|Korbel]]
*[[Korbel, Humboldt County, California|Korbel]]
{{ColBreak}}
*[[Mad River, California|Mad River]]
*[[Manila, California|Manila]]
*[[Manila, California|Manila]]
*[[McKinleyville, California|McKinleyville]]
*[[McKinleyville, California|McKinleyville]]
Line 101: Line 71:
*[[Petrolia, California|Petrolia]]
*[[Petrolia, California|Petrolia]]
*[[Phillipsville, California|Phillipsville]]
*[[Phillipsville, California|Phillipsville]]
{{ColBreak}}
*[[Pine Hills, California|Pine Hills]]
*[[Pine Hills, California|Pine Hills]]
*[[Redcrest, California|Redcrest]]
*[[Redcrest, California|Redcrest]]
Line 112: Line 81:
*[[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]]
{{EndMultiCol}}
{{colend}}


===[[Lake County, California|Lake County]]===
===Lake County===
{{Div col|colwidth=19em}}
{{MultiCol|auto}}
*[[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]]
Line 128: Line 98:
*[[Lake Pillsbury]]
*[[Lake Pillsbury]]
*[[Lakeport, California|Lakeport]]
*[[Lakeport, California|Lakeport]]
{{ColBreak}}
*[[Loch Lomond, California|Loch Lomond]]
*[[Loch Lomond, California|Loch Lomond]]
*[[Lower Lake, California|Lower Lake]]
*[[Lower Lake, California|Lower Lake]]
Line 139: Line 108:
*[[Whispering Pines, Lake County, California|Whispering Pines]]
*[[Whispering Pines, Lake County, California|Whispering Pines]]
*[[Witter Springs, California|Witter Springs]]
*[[Witter Springs, California|Witter Springs]]
{{EndMultiCol}}
{{colend}}


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


===[[Mendocino County, California|Mendocino County]]===
===Mendocino County===
{{Div col|colwidth=19em}}
{{MultiCol|auto}}
*[[Albion, California|Albion]]
*[[Albion, California|Albion]]
*[[Boonville, California|Boonville]]
*[[Boonville, California|Boonville]]
Line 156: Line 127:
*[[Comptche, California|Comptche]]
*[[Comptche, California|Comptche]]
*[[Covelo, California|Covelo]]
*[[Covelo, California|Covelo]]
*Dos Rios
*[[Dos Rios, California|Dos Rios]]
{{ColBreak}}
*[[Elk, Mendocino County, California|Elk]]
*[[Elk, Mendocino County, California|Elk]]
*[[Fort Bragg, California|Fort Bragg]]
*[[Fort Bragg, California|Fort Bragg]]
Line 167: Line 137:
*[[Leggett, California|Leggett]]
*[[Leggett, California|Leggett]]
*[[Little River, California|Little River]]
*[[Little River, California|Little River]]
{{ColBreak}}
*[[Manchester, California|Manchester]]
*[[Manchester, California|Manchester]]
*[[Mendocino, California|Mendocino]]
*[[Mendocino, California|Mendocino]]
Line 177: Line 146:
*[[Potter Valley, California|Potter Valley]]
*[[Potter Valley, California|Potter Valley]]
*Pudding Creek
*Pudding Creek
{{ColBreak}}
*Redwood Lodge
*Redwood Lodge
*[[Redwood Valley, California|Redwood Valley]]
*[[Redwood Valley, California|Redwood Valley]]
Line 187: Line 155:
*[[Willits, California|Willits]]
*[[Willits, California|Willits]]
*Yorkville
*Yorkville
{{EndMultiCol}}
{{colend}}


===[[Napa County, California|Napa County]]===
===Napa County===
{{Div col|colwidth=19em}}
{{MultiCol|auto}}
*[[Aetna Springs, California|Aetna Springs]]
*[[Aetna Springs, California|Aetna Springs]]
*[[American Canyon, California|American Canyon]]
*[[American Canyon, California|American Canyon]]
Line 199: Line 167:
*[[Napa, California|Napa]]
*[[Napa, California|Napa]]
*[[Oakville, California|Oakville]]
*[[Oakville, California|Oakville]]
{{ColBreak}}
*[[Pope Valley, California|Pope Valley]]
*[[Pope Valley, California|Pope Valley]]
*[[Rutherford, California|Rutherford]]
*[[Rutherford, California|Rutherford]]
Line 207: Line 174:
*[[Yountville, California|Yountville]]
*[[Yountville, California|Yountville]]
*[[Zinfandel, California|Zinfandel]]
*[[Zinfandel, California|Zinfandel]]
{{EndMultiCol}}
{{colend}}


===[[Solano County, California|Solano County]]===
===Solano County===
{{Div col|colwidth=19em}}
{{MultiCol|auto}}
*[[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]]
*[[Fairfield, California|Fairfield]]
*[[Fairfield, California|Fairfield]]
*[[Green Valley, Solano County, California|Green Valley]]
*[[Green Valley, Solano County, California|Green Valley]]
{{ColBreak}}
*[[Liberty Farms, California|Liberty Farms]]
*[[Liberty Farms, California|Liberty Farms]]
*[[Rio Vista, California|Rio Vista]]
*[[Rio Vista, California|Rio Vista]]
Line 225: Line 192:
*[[Vacaville, California|Vacaville]]
*[[Vacaville, California|Vacaville]]
*[[Vallejo, California|Vallejo]]
*[[Vallejo, California|Vallejo]]
{{EndMultiCol}}
{{colend}}


===[[Sonoma County, California|Sonoma County]]===
===Sonoma County===
{{Div col|colwidth=19em}}
{{MultiCol|auto}}
*[[Asti, California|Asti]]
*[[Asti, California|Asti]]
*[[Bloomfield, California|Bloomfield]]
*[[Bloomfield, California|Bloomfield]]
Line 235: Line 202:
*[[Boyes Hot Springs, California|Boyes Hot Springs]]
*[[Boyes Hot Springs, California|Boyes Hot Springs]]
*[[Camp Meeker, California|Camp Meeker]]
*[[Camp Meeker, California|Camp Meeker]]
*[[Carmet, California|Carmet]]
*[[Cazadero, California|Cazadero]]
*[[Cazadero, California|Cazadero]]
*[[Cloverdale, California|Cloverdale]]
*[[Cloverdale, California|Cloverdale]]
Line 242: Line 210:
*[[Eldridge, California|Eldridge]]
*[[Eldridge, California|Eldridge]]
*[[Fetters Hot Springs-Agua Caliente, California|Fetters Hot Springs-Agua Caliente]]
*[[Fetters Hot Springs-Agua Caliente, California|Fetters Hot Springs-Agua Caliente]]
{{ColBreak}}
*[[Forestville, California|Forestville]]
*[[Forestville, California|Forestville]]
*[[Fort Ross, California|Fort Ross]]
*[[Fort Ross, California|Fort Ross]]
Line 256: Line 223:
*[[Kenwood, California|Kenwood]]
*[[Kenwood, California|Kenwood]]
*Korbel
*Korbel
{{ColBreak}}
*[[Lakeville, California|Lakeville]]
*[[Lakeville, California|Lakeville]]
*[[Larkfield-Wikiup, California|Larkfield-Wikiup]]
*[[Larkfield-Wikiup, California|Larkfield-Wikiup]]
Line 265: 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]]
*[[Roseland, California|Roseland]]
*[[Roseland, California|Roseland]]
*[[Salmon Creek, California|Salmon Creek]]
*[[Salmon Creek, California|Salmon Creek]]
{{ColBreak}}
*[[Santa Rosa, California|Santa Rosa]]
*[[Santa Rosa, California|Santa Rosa]]
*Schellville
*Schellville
Line 283: Line 248:
*Vineburg
*Vineburg
*[[Windsor, California|Windsor]]
*[[Windsor, California|Windsor]]
{{EndMultiCol}}
{{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]]
Line 291: Line 257:
==See also==
==See also==
*[[List of California area codes]]
*[[List of California area codes]]

==References==
<references />


==External links==
==External links==
* {{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 code 510|510]], [[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 312: 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

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Del Norte County

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Humboldt County

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Lake County

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Marin County

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Mendocino County

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Napa County

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Solano County

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Sonoma County

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Trinity County

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See also

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References

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  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.
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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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