California 지역 코드: 442
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Note：442 지역 번호는 다음과 같습니다 California, 미국. 국제 전화 번호는 001442 or 001-442、0010442、+1-442、+1+442、+1442、00-1-442、00 1 442.
More About Area Code 442
Area Code 442 was first put in service November 21, 2009. Currently, the largest city it serves is Oceanside, CA, and it overlaps coverage areas with area code 760.
Active Phone Number Prefixes
| Prefix | Usage | Primary City | Carrier |
| (442) 200- | Landline | Calexico | Cf Communications DBA Telekenex |
| (442) 220- | Landline | Nipton | Telcentris Communications |
| (442) 221- | Landline | Benton | Bandwidth.com Clec |
| (442) 222- | Landline | Oceanside | Cf Communications DBA Telekenex |
| (442) 223- | Landline | Newberry Springs | Peerless Network Of California |
| (442) 224- | Landline | Vista | Time Warner Cbl Info Svcs (ca) DBAtime Warner Cbl |
| (442) 225- | Wireless | El Centro | Flat West Wireless |
| (442) 226- | Wireless | Brawley | T-mobile Usa |
| (442) 227- | Landline | Palm Springs | Wide Voice |
| (442) 228- | Landline | Bishop | Cebridge Telecom Ca DBA Suddenlink Comms |
| (442) 229- | Landline | Victorville | Bandwidth.com Clec |
| (442) 231- | Wireless | El Centro | Flat West Wireless |
| (442) 232- | Landline | Carlsbad | Level 3 Communications |
| (442) 233- | Unknown | Bandwidth.com Clec | |
| (442) 234- | Landline | Palm Springs | Peerless Network Of California |
| (442) 235- | Unknown | Cellco Partnership DBA Verizon Wireless | |
| (442) 236- | Wireless | El Centro | New Cingular Wireless PCS |
| (442) 237- | Unknown | Metro PCS | |
| (442) 238- | Unknown | Flat West Wireless | |
| (442) 242- | Landline | Victorville | Metropcs Networks |
| (442) 243- | Unknown | Cellco Partnership DBA Verizon Wireless | |
| (442) 244- | Landline | Carlsbad | Time Warner Cbl Info Svcs (ca) DBAtime Warner Cbl |
| (442) 246- | Unknown | Mci Worldcom Communications, Ca | |
| (442) 253- | Unknown | Centurylink Communications LLC | |
| (442) 281- | Landline | Escondido | Pacific Bell |
| (442) 300- | Landline | Indio | Cf Communications DBA Telekenex |
| (442) 321- | Unknown | Mci Worldcom Communications, Ca | |
| (442) 333- | Landline | Oceanside | Telcentris Communications |
| (442) 400- | Landline | Indio | Cf Communications DBA Telekenex |
| (442) 444- | Landline | Fallbrook | Cf Communications DBA Telekenex |
| (442) 500- | Landline | Oceanside | Cf Communications DBA Telekenex |
| (442) 600- | Landline | Hesperia | Cf Communications DBA Telekenex |
| (442) 666- | Landline | Palm Springs | Cf Communications DBA Telekenex |
| (442) 777- | Landline | Escondido | Telcentris Communications |
| (442) 800- | Landline | Hesperia | Cf Communications DBA Telekenex |
| (442) 888- | Landline | Oceanside | Telcentris Communications |
| (442) 900- | Landline | El Centro | Cf Communications DBA Telekenex |
| (442) 999- | Landline | Escondido | Cf Communications DBA Telekenex |