707 area code
Area code 707 is in California. It covers Santa Rosa, Vallejo, Fairfield and 172 other places: 165 ZIP codes in Sonoma, Solano, Humboldt and 6 other counties. Local time there is , Pacific Time. In service since 1959; 369 (2023) overlays it, so a number from there can have either code.
- State
- California
- Time zone
- Pacific
- Largest city
- Santa Rosa
- Overlays
- 369
- In service since
- 1959
- Rate centres
- 75
- Prefixes assigned
- 785 (7,850,000 numbers)
Who calls from a 707 number
NANPA records the carrier each block of 707 numbers is assigned to. Of the 7.6 million 707 numbers assigned, 44% are with cable, internet-calling, business and other carriers (Onvoy and Bandwidth); 30% with mobile carriers (AT&T Mobility, T-Mobile and Verizon Wireless); 24% with local phone companies (AT&T); 2% with paging companies.
That is who the numbers were assigned to: people keep their number when they change carrier, so any one number may have moved since.
| Carrier | Kind | Share |
|---|---|---|
| AT&T | Landline | 22% |
| Onvoy | Cable, VoIP, other | 15% |
| AT&T Mobility | Mobile | 11% |
| T-Mobile | Mobile | 9% |
| Verizon Wireless | Mobile | 8% |
| Bandwidth | Cable, VoIP, other | 5% |
An area code says where a number was issued, not where the caller is: people keep their numbers when they move, and caller ID can be set to show any number, which the FCC calls spoofing. If a call you did not expect asks for money or personal details, the FCC advises hanging up and calling the company back on a number you look up yourself. Unwanted calls can be reported to the FTC at ReportFraud.ftc.gov.
Places in area code 707
The 70 places with a telephone rate centre of their own using 707, largest first. Each links to its ZIP codes.
Nearby places using 707
These places have no rate centre of their own in NANPA's records; the nearest one uses 707. Near an area-code boundary that can be wrong for part of a town.
- Fairfield
- Rohnert Park
- American Canyon
- Mckinleyville
- Clearlake
- Larkfield-Wikiup
- Cotati
- Boyes Hot Springs
- Hidden Valley Lake
- Myrtletown
- Brooktrails
- Clearlake Riviera
- Travis Afb
- Humboldt Hill
- Cutten
- El Verano
- Lucerne
- Fetters Hot Springs-Agua Caliente
- North Lakeport
- Angwin
- Pine Hills
- Bayview
- Hartley
- Bertsch-Oceanview
- Sonoma State University
- Penngrove
- Redwood Valley
- Graton
- Allendale
- Bayside
- Temelec
- Westhaven-Moonstone
- Eldridge
- Fort Dick
- Green Valley
- Sea Ranch
- Carlotta
- The Sea Ranch
- Redway
- Talmage
- Glen Ellen
- Kneeland
- Manila
- Silverado Resort
- Soda Bay
- Anchor Bay
- Petaluma Center
- Fieldbrook
- Deer Park
- Pope Valley
- Cleone
- Indianola
- Shelter Cove
- Fields Landing
- Ruth
- Calpella
- Fulton
- Scotia
- Rio Nido
- Gasquet
ZIP codes in area code 707
165 ZIP codes in 138 towns, by the town each is mailed to, largest first. Each links to its own page.
Where 707 numbers are issued
NANPA's rate centres with the most 707 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.
| Rate centre | Place | Prefixes |
|---|---|---|
SANTA ROSA | Santa Rosa | 144 |
FRFLD-SUIS | — | 56 |
VALLEJO | Vallejo | 50 |
NAPA | Napa | 43 |
VACAVILLE | Vacaville | 37 |
EUREKA | Eureka | 36 |
Counties
The counties of its ZIP codes, most residents first, with how many of its ZIP codes each has.
- Sonoma County (50)
- Solano County (15)
- Humboldt County (34)
- Napa County (11)
- Mendocino County (28)
- Lake County (15)
- Marin County (4)
- Del Norte County (6)
- Trinity County (2)
Which code covers where you are now? What area code am I in? answers from your location.
Questions about area code 707
Where is area code 707?
Area code 707 is in California. It covers Santa Rosa, Vallejo, Fairfield and 172 other places: 165 ZIP codes in Sonoma, Solano, Humboldt and 6 other counties.
What ZIP codes are in area code 707?
165 ZIP codes, by the town each is mailed to: Santa Rosa (8, 95401 to 95409), Vallejo (4, 94589 to 94592), Fairfield (2, 94533 to 94534), Vacaville (3, 95687 to 95696) and 134 more towns. The full list is on this page.
What time zone is area code 707 in?
Pacific time.
Is a 707 number a mobile or a landline?
It can be either. 30% of 707 numbers are assigned to mobile carriers and 24% to local phone companies (NANPA, 2026-10-10); the rest are with cable, internet-calling, business and paging carriers. A number keeps its area code when it moves to another carrier.
What area codes overlay 707?
369. They cover the same area as 707, so a new number there can be given any of them.
Does a 707 number mean the caller is in California?
Not necessarily. An area code says where the number was first issued. People keep their numbers when they move or switch carriers, and calling software can show any number, so a 707 call can come from anywhere.
Other area codes in California
- 209 Fresno
- 213 Los Angeles
- 279 Sacramento
- 310 Torrance
- 323 Los Angeles
- 341 Oakland
- 350 Stockton
- 357 Fresno
- 369 Santa Rosa
- 408 San Jose
- 415 San Francisco
- 424 Torrance
- 442 Oceanside
- 510 Oakland
- 530 Chico
- 559 Fresno
- 562 Long Beach
- 619 San Diego
- 626 Pasadena
- 628 San Francisco
- 650 San Mateo
- 657 Anaheim
- 661 Bakersfield
- 669 San Jose
- 714 Anaheim
- 738 Los Angeles
- 747 Glendale
- 760 Oceanside
- 805 Bakersfield
- 818 Glendale
- 820 Oxnard
- 831 Salinas
- 837 Chico
- 840 Fontana
- 858 San Diego
- 909 Fontana
- 916 Sacramento
- 925 Concord
- 949 Irvine
- 951 Riverside
All 41 California area codes, by area, with the cities each covers
Source: NANPA NPA database, central office code and thousands-block assignments, 2026-10-10. Places are matched to NANPA's rate centres by name; see sources.
Cite this page
zipcodes.pro. “Area code 707.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/707
Underlying data is public domain or openly licensed — sources, vintages and licences.