California Areacode: 657
Note๏ผ657 is the areacode of California, United States. For international number is 001657 or 001-657ใ0010657ใ+1-657ใ+1+657ใ+1657ใ00-1-657ใ00 1 657.
More About Area Code 657
Area Code 657 was first put in service September 23, 2008. Currently, the largest city it serves is Anaheim, CA, and it overlaps coverage areas with area code 714.
Active Phone Number Prefixes
| Prefix | Usage | Primary City | Carrier |
| (657) 200- | Landline | Westminster | Metropcs Networks |
| (657) 201- | Wireless | Anaheim | Metropcs Networks |
| (657) 202- | Landline | Anaheim | Peerless Network Of California |
| (657) 203- | Landline | Huntington Beach | Level 3 Communications |
| (657) 204- | Landline | Huntington Beach | Bandwidth.com Clec |
| (657) 205- | Landline | Santa Ana | Mci Worldcom Communications, Ca |
| (657) 206- | Wireless | Garden Grove | T-mobile Usa |
| (657) 207- | Wireless | Anaheim | Metropcs Networks |
| (657) 208- | Landline | Anaheim | Broadvox-clec |
| (657) 210- | Landline | Santa Ana | Bandwidth.com Clec |
| (657) 212- | Landline | Santa Ana | Level 3 Communications |
| (657) 214- | Landline | Cypress | Bandwidth.com Clec |
| (657) 215- | Landline | Huntington Beach | Level 3 Communications |
| (657) 216- | Landline | Placentia | Bandwidth.com Clec |
| (657) 217- | Wireless | Fullerton | Bandwidth.com Clec |
| (657) 218- | Landline | Santa Ana | Time Warner Cbl Info Svcs (ca) DBAtime Warner Cbl |
| (657) 220- | Landline | Anaheim | Time Warner Cbl Info Svcs (ca) DBAtime Warner Cbl |
| (657) 221- | Landline | Orange | Level 3 Communications |
| (657) 222- | Landline | Cypress | Cf Communications DBA Telekenex |
| (657) 223- | Landline | Orange | Time Warner Cbl Info Svcs (ca) DBAtime Warner Cbl |
| (657) 224- | Landline | Orange | Peerless Network Of California |
| (657) 225- | Landline | Fullerton | Peerless Network Of California |
| (657) 226- | Landline | Placentia | Bandwidth.com Clec |
| (657) 227- | Landline | Long Beach | Time Warner Cbl Info Svcs (ca) DBAtime Warner Cbl |
| (657) 228- | Landline | Santa Ana | Peerless Network Of California |
| (657) 229- | Landline | Santa Ana | Bandwidth.com Clec |
| (657) 231- | Landline | Anaheim | Sbc Internet Services |
| (657) 232- | Landline | Anaheim | Time Warner Cbl Info Svcs (ca) DBAtime Warner Cbl |
| (657) 233- | Landline | Garden Grove | Sbc Internet Services |
| (657) 234- | Landline | Yorba Linda | Bandwidth.com Clec |
| (657) 235- | Landline | Santa Ana | Bandwidth.com Clec |
| (657) 236- | Wireless | Orange | Cellco Partnership DBA Verizon Wireless |
| (657) 237- | Unknown | Level 3 Communications | |
| (657) 238- | Unknown | T-mobile Usa | |
| (657) 241- | Landline | Anaheim | Paetec Communications |
| (657) 242- | Unknown | Level 3 Communications | |
| (657) 243- | Unknown | Level 3 Communications | |
| (657) 245- | Landline | Santa Ana | Peerless Network Of California |
| (657) 251- | Landline | Garden Grove | Time Warner Cbl Info Svcs (ca) DBAtime Warner Cbl |
| (657) 269- | Wireless | Anaheim | Cellco Partnership DBA Verizon Wireless |
| (657) 278- | Landline | Fullerton | Pacific Bell |
| (657) 300- | Landline | Huntington Beach | Cf Communications DBA Telekenex |
| (657) 330- | Landline | Fullerton | Peerless Network Of California |
| (657) 333- | Landline | Orange | Telcentris Communications |
| (657) 378- | Landline | Fullerton | Peerless Network Of California |
| (657) 383- | Landline | Santa Ana | Peerless Network Of California |
| (657) 400- | Landline | Westminster | Cf Communications DBA Telekenex |
| (657) 444- | Landline | Placentia | Telcentris Communications |
| (657) 464- | Landline | Huntington Beach | Bandwidth.com Clec |
| (657) 500- | Landline | Fullerton | Telcentris Communications |
| (657) 529- | Landline | Buena Park | Telcentris Communications |
| (657) 549- | Landline | Anaheim | Bandwidth.com Clec |
| (657) 600- | Landline | Santa Ana | Cf Communications DBA Telekenex |
| (657) 622- | Landline | Santa Ana | Pacific Bell |
| (657) 666- | Landline | Long Beach | Cf Communications DBA Telekenex |
| (657) 667- | Landline | Garden Grove | Time Warner Cbl Info Svcs (ca) DBAtime Warner Cbl |
| (657) 777- | Landline | Cypress | Telcentris Communications |
| (657) 800- | Landline | Garden Grove | Cf Communications DBA Telekenex |
| (657) 845- | Landline | Huntington Beach | Time Warner Cbl Info Svcs (ca) DBAtime Warner Cbl |
| (657) 859- | Landline | Santa Ana | Cox California Telcom, L.l.c. |
| (657) 888- | Landline | Orange | Telcentris Communications |
| (657) 900- | Landline | Santa Ana | Telcentris Communications |
| (657) 999- | Landline | Anaheim | Telcentris Communications |
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