442 area code
Area code 442 is in California. It covers Oceanside, Escondido, Victorville and 156 other places: 146 ZIP codes in San Diego, Riverside, San Bernardino and 6 other counties. Local time there is , Pacific Time. In service since 2009 as an overlay: it covers the same area as 760, so a number from there can have either code.
- State
- California
- Time zone
- Pacific
- Largest city
- Oceanside
- Overlays
- 760
- In service since
- 2009
- Rate centres
- 78
- Prefixes assigned
- 356 (3,560,000 numbers)
Who calls from a 442 number
NANPA records the carrier each block of 442 numbers is assigned to. Of the 3.2 million 442 numbers assigned, 52% are with mobile carriers (AT&T Mobility, T-Mobile and Verizon Wireless); 47% with cable, internet-calling, business and other carriers (Onvoy, Bandwidth and Peerless Network Of California).
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 |
|---|---|---|
| Onvoy | Cable, VoIP, other | 24% |
| AT&T Mobility | Mobile | 22% |
| T-Mobile | Mobile | 19% |
| Verizon Wireless | Mobile | 11% |
| Bandwidth | Cable, VoIP, other | 3% |
| Peerless Network Of California | Cable, VoIP, other | 3% |
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 442
The 62 places with a telephone rate centre of their own using 442, largest first. Each links to its ZIP codes.
Nearby places using 442
These places have no rate centre of their own in NANPA's records; the nearest one uses 442. Near an area-code boundary that can be wrong for part of a town.
- Apple Valley
- Cathedral City
- Coachella
- La Quinta
- Adelanto
- Phelan
- Rancho Mirage
- Camp Pendleton South
- Cardiff By The Sea
- San Diego Country Estates
- Spring Valley Lake
- Oak Hills
- Bermuda Dunes
- Thousand Palms
- Helendale
- Garnet
- Heber
- Mecca
- Silver Lakes
- Desert Palms
- Salton City
- Indian Wells
- Lake San Marcos
- Bonsall
- Oasis
- Desert Edge
- Hidden Meadows
- North Shore
- Mountain View Acres
- Dixon Lane-MeadowCreek
- Landers
- Wofford Heights
- China Lake Acres
- Harmony Grove
- West Bishop
- Vista Santa Rosa
- Sky Valley
- Yosemite National Park
- Rainbow
- Yosemite Valley
- Westmorland
- Thermal
- Searles Valley
- Bodfish
- Seeley
- Big River
- Indio Hills
- Niland
- Squirrel Mountain Valley
- Mesa Verde
- Yermo
- Oro Grande
- Desert Shores
- Hinkley
- Palomar Mountain
- Santa Ysabel
- Mountain Mesa
- Elfin Forest
- Daggett
- Round Valley
ZIP codes in area code 442
146 ZIP codes in 99 towns, by the town each is mailed to, largest first. Each links to its own page.
Where 442 numbers are issued
NANPA's rate centres with the most 442 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.
| Rate centre | Place | Prefixes |
|---|---|---|
VICTORVL | Victorville | 29 |
PALM SPG | Palm Springs | 27 |
INDIO | Indio | 24 |
ESCONDIDO | Escondido | 22 |
EL CENTRO | El Centro | 21 |
BRAWLEY | Brawley | 19 |
Counties
The counties of its ZIP codes, most residents first, with how many of its ZIP codes each has.
- San Diego County (37)
- Riverside County (26)
- San Bernardino County (36)
- Imperial County (17)
- Kern County (12)
- Mono County (5)
- Inyo County (10)
- Tulare County (2)
- Mariposa County (1)
Which code covers where you are now? What area code am I in? answers from your location.
Questions about area code 442
Where is area code 442?
Area code 442 is in California. It covers Oceanside, Escondido, Victorville and 156 other places: 146 ZIP codes in San Diego, Riverside, San Bernardino and 6 other counties.
What ZIP codes are in area code 442?
146 ZIP codes, by the town each is mailed to: Oceanside (7, 92049 to 92058), Escondido (7, 92025 to 92046), Victorville (4, 92392 to 92395), Vista (4, 92081 to 92085) and 95 more towns. The full list is on this page.
What time zone is area code 442 in?
Pacific time.
Is a 442 number a mobile or a landline?
It can be either. 52% of 442 numbers are assigned to mobile carriers and under 1% 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 442?
760. They cover the same area as 442, so a new number there can be given any of them.
Does a 442 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 442 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
- 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
- 707 Santa Rosa
- 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 442.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/442
Underlying data is public domain or openly licensed — sources, vintages and licences.