California 市外局番: 424
Note：424 市外局番は California, アメリカ合衆国. 国際番号は 001424 or 001-424、0010424、+1-424、+1+424、+1424、00-1-424、00 1 424.
More About Area Code 424
Area Code 424 was first put in service August 26, 2006. Currently, the largest city it serves is Los Angeles, CA, and it overlaps coverage areas with area code 310.
Active Phone Number Prefixes
| Prefix | Usage | Primary City | Carrier |
| (424) 200- | Wireless | Hawthorne | Cellco Partnership DBA Verizon Wireless |
| (424) 201- | Landline | Torrance | Level 3 Communications |
| (424) 202- | Wireless | Beverly Hills | Cellco Partnership DBA Verizon Wireless |
| (424) 203- | Landline | Long Beach | Xo California |
| (424) 204- | Landline | Beverly Hills | Xo California |
| (424) 205- | Landline | San Pedro | Allegiance Telecom |
| (424) 206- | Landline | Hermosa Beach | Level 3 Communications |
| (424) 207- | Wireless | Los Angeles | Sprint Spectrum L.p. |
| (424) 208- | Wireless | W Los Angeles | Sprint Spectrum L.p. |
| (424) 209- | Landline | Culver City | Ymax Communications Corp. |
| (424) 210- | Wireless | San Pedro | T-mobile Usa |
| (424) 212- | Wireless | Hermosa Beach | Sprint Spectrum L.p. |
| (424) 213- | Wireless | Compton | T-mobile Usa |
| (424) 214- | Wireless | Santa Monica | Sprint Spectrum L.p. |
| (424) 215- | Wireless | San Pedro | Sprint Spectrum L.p. |
| (424) 216- | Wireless | Mar Vista | T-mobile Usa |
| (424) 217- | Wireless | El Segundo | T-mobile Usa |
| (424) 218- | Landline | El Segundo | U.s. Telepacific Corp. |
| (424) 219- | Wireless | Gardena | Sprint Spectrum L.p. |
| (424) 220- | Landline | El Segundo | Tcast Communications |
| (424) 221- | Wireless | Gardena | Metropcs Networks |
| (424) 222- | Wireless | Lomita | Metropcs Networks |
| (424) 223- | Wireless | Inglewood | Metropcs Networks |
| (424) 224- | Wireless | San Pedro | Metropcs Networks |
| (424) 225- | Wireless | El Segundo | New Cingular Wireless PCS |
| (424) 226- | Landline | San Pedro | Xo California |
| (424) 227- | Wireless | Inglewood | Cellco Partnership DBA Verizon Wireless |
| (424) 228- | Wireless | Mar Vista | Metropcs Networks |
| (424) 229- | Wireless | Santa Monica | Metropcs Networks |
| (424) 230- | Wireless | Beverly Hills | Sprint Spectrum L.p. |
| (424) 231- | Landline | Santa Monica | Level 3 Communications |
| (424) 232- | Wireless | Gardena | Sprint Spectrum L.p. |
| (424) 233- | Wireless | Gardena | Sprint Spectrum L.p. |
| (424) 234- | Wireless | Malibu | Cellco Partnership DBA Verizon Wireless |
| (424) 235- | Wireless | Malibu | Sprint Spectrum L.p. |
| (424) 236- | Wireless | Hawthorne | New Cingular Wireless PCS |
| (424) 237- | Landline | El Segundo | Metropcs Networks |
| (424) 238- | Landline | Santa Monica | Verizon California Inc.-ca (gte) |
| (424) 239- | Landline | Los Angeles | Cbeyond Communications |
| (424) 240- | Wireless | Hawthorne | Metropcs Networks |
| (424) 241- | Wireless | Hermosa Beach | Paetec Communications |
| (424) 242- | Landline | Compton | Level 3 Communications |
| (424) 243- | Landline | Inglewood | Level 3 Communications |
| (424) 244- | Landline | Green | U.s. Telepacific Corp. |
| (424) 245- | Landline | Beverly Hills | Xo California |
| (424) 246- | Landline | Gardena | Metropcs Networks |
| (424) 247- | Wireless | Hermosa Beach | Sprint Spectrum L.p. |
| (424) 248- | Landline | Los Angeles | Allegiance Telecom |
| (424) 249- | Wireless | Beverly Hills | Metropcs Networks |
| (424) 250- | Landline | Gardena | Cbeyond Communications |
| (424) 251- | Wireless | Lomita | Cellco Partnership DBA Verizon Wireless |
| (424) 252- | Landline | Santa Monica | Paetec Communications |
| (424) 253- | Landline | Beverly Hills | Xo California |
| (424) 254- | Landline | Long Beach | Xo California |
| (424) 255- | Wireless | Hawthorne | Cellco Partnership DBA Verizon Wireless |
| (424) 256- | Landline | Los Angeles | Bandwidth.com Clec |
| (424) 257- | Landline | Hermosa Beach | Bandwidth.com Clec |
| (424) 258- | Landline | Culver City | Paetec Communications |
| (424) 259- | Landline | Santa Monica | Paetec Communications |
| (424) 260- | Landline | Gardena | Bandwidth.com Clec |
| (424) 261- | Landline | Inglewood | Bandwidth.com Clec |
| (424) 262- | Landline | Hermosa Beach | Bandwidth.com Clec |
| (424) 263- | Landline | Lomita | Sbc Internet Services |
| (424) 264- | Landline | San Pedro | Sbc Internet Services |
| (424) 265- | Landline | Hermosa Beach | Bandwidth.com Clec |
| (424) 266- | Landline | Gardena | Bandwidth.com Clec |
| (424) 267- | Landline | San Pedro | Xo California |
| (424) 268- | Landline | Santa Monica | Level 3 Communications |
| (424) 269- | Landline | Los Angeles | Level 3 Communications |
| (424) 270- | Landline | W Los Angeles | Level 3 Communications |
| (424) 271- | Landline | Torrance | Level 3 Communications |
| (424) 272- | Landline | Santa Monica | Teleport Communications Group - Los Angeles |
| (424) 273- | Wireless | W Los Angeles | Cellco Partnership DBA Verizon Wireless |
| (424) 274- | Landline | Beverly Hills | Bandwidth.com Clec |
| (424) 275- | Landline | Hermosa Beach | Level 3 Communications |
| (424) 276- | Landline | W Los Angeles | Bandwidth.com Clec |
| (424) 277- | Landline | Los Angeles | Level 3 Communications |
| (424) 278- | Wireless | Beverly Hills | New Cingular Wireless PCS |
| (424) 279- | Landline | Beverly Hills | Cbeyond Communications |
| (424) 280- | Wireless | Santa Monica | Cellco Partnership DBA Verizon Wireless |
| (424) 281- | Landline | Los Angeles | Bandwidth.com Clec |
| (424) 282- | Landline | Gardena | Cbeyond Communications |
| (424) 283- | Landline | Los Angeles | Peerless Network Of California |
| (424) 284- | Landline | Los Angeles | Onvoy |
| (424) 285- | Landline | Sherman Oaks | Level 3 Communications |
| (424) 286- | Landline | Green | Level 3 Communications |
| (424) 287- | Wireless | San Pedro | Sprint Spectrum L.p. |
| (424) 288- | Landline | Beverly Hills | Pacific Bell |
| (424) 289- | Landline | Los Angeles | U.s. Telepacific Corp. |
| (424) 290- | Landline | El Segundo | Bandwidth.com Clec |
| (424) 291- | Landline | Santa Monica | Centurylink Communications LLC |
| (424) 292- | Landline | Green | Centurylink Communications LLC |
| (424) 293- | Landline | Los Angeles | Level 3 Communications |
| (424) 294- | Landline | Hawthorne | Global Crossing Local Services-ca |
| (424) 295- | Wireless | Gardena | Sprint Spectrum L.p. |
| (424) 296- | Landline | Los Angeles | Level 3 Communications |
| (424) 297- | Landline | Los Angeles | Centurylink Communications LLC |
| (424) 298- | Wireless | Culver City | New Cingular Wireless PCS |
| (424) 299- | Landline | Santa Monica | T-mobile Usa |
| (424) 300- | Landline | Green | Cf Communications DBA Telekenex |
| (424) 302- | Landline | Sherman Oaks | Time Warner Cbl Info Svcs (ca) DBAtime Warner Cbl |
| (424) 314- | Landline | Beverly Hills | Pacific Bell |
| (424) 315- | Landline | Beverly Hills | Pacific Bell |
| (424) 320- | Landline | Los Angeles | Level 3 Communications |
| (424) 321- | Wireless | El Segundo | T-mobile Usa |
| (424) 322- | Landline | Santa Monica | Level 3 Communications |
| (424) 324- | Wireless | Los Angeles | T-mobile Usa |
| (424) 325- | Landline | Los Angeles | Peerless Network Of California |
| (424) 326- | Landline | Los Angeles | Telcentris Communications |
| (424) 327- | Landline | Hermosa Beach | Cox California Telcom, L.l.c. |
| (424) 328- | Landline | Lomita | Centurylink Communications LLC |
| (424) 329- | Wireless | Green | New Cingular Wireless PCS |
| (424) 331- | Landline | Los Angeles | Bandwidth.com Clec |
| (424) 332- | Wireless | Los Angeles | T-mobile Usa |
| (424) 333- | Landline | Los Angeles | Telcentris Communications |
| (424) 334- | Landline | San Pedro | Level 3 Communications |
| (424) 335- | Wireless | Beverly Hills | T-mobile Usa |
| (424) 336- | Landline | Los Angeles | Cf Communications DBA Telekenex |
| (424) 337- | Landline | Torrance | Teleport Communications Group - Los Angeles |
| (424) 338- | Landline | Compton | Pacific Bell |
| (424) 341- | Wireless | Culver City | T-mobile Usa |
| (424) 342- | Landline | San Pedro | Bandwidth.com Clec |
| (424) 343- | Wireless | Los Angeles | New Cingular Wireless PCS |
| (424) 345- | Landline | Los Angeles | Level 3 Communications |
| (424) 346- | Unknown | Bandwidth.com Clec | |
| (424) 347- | Landline | Lomita | Mcimetro Access Transmission Services LLC |
| (424) 348- | Unknown | Level 3 Communications | |
| (424) 351- | Unknown | Level 3 Communications | |
| (424) 352- | Unknown | Bandwidth.com Clec | |
| (424) 353- | Landline | Mar Vista | Time Warner Cbl Info Svcs (ca) DBAtime Warner Cbl |
| (424) 354- | Landline | Beverly Hills | Level 3 Communications |
| (424) 356- | Unknown | New Cingular Wireless PCS | |
| (424) 365- | Unknown | Broadvox-clec | |
| (424) 400- | Landline | Hermosa Beach | Cf Communications DBA Telekenex |
| (424) 442- | Landline | W Los Angeles | Paetec Communications |
| (424) 444- | Landline | Compton | Telcentris Communications |
| (424) 456- | Landline | Hawthorne | O1 Communications |
| (424) 465- | Landline | Los Angeles | Telcentris Communications |
| (424) 477- | Landline | San Pedro | Charter Fiberlink Ca-cco |
| (424) 488- | Landline | Torrance | Cf Communications DBA Telekenex |
| (424) 500- | Landline | Los Angeles | Cf Communications DBA Telekenex |
| (424) 529- | Landline | Compton | Cf Communications DBA Telekenex |
| (424) 543- | Landline | Culver City | Level 3 Communications |
| (424) 558- | Wireless | Torrance | New Cingular Wireless PCS |
| (424) 568- | Landline | Inglewood | Paetec Communications |
| (424) 570- | Landline | San Pedro | Global Crossing Local Services-ca |
| (424) 571- | Wireless | Torrance | Metropcs Networks |
| (424) 600- | Landline | Los Angeles | Cf Communications DBA Telekenex |
| (424) 603- | Landline | Culver City | Sbc Internet Services |
| (424) 610- | Unknown | Mci Worldcom Communications, Ca | |
| (424) 625- | Landline | Mar Vista | Level 3 Communications |
| (424) 634- | Landline | Hermosa Beach | Global Crossing Local Services-ca |
| (424) 644- | Landline | Malibu | Charter Fiberlink Ca-cco |
| (424) 645- | Landline | Santa Monica | Level 3 Communications |
| (424) 646- | Landline | Inglewood | Pacific Bell |
| (424) 652- | Wireless | W Los Angeles | Global Crossing Local Services-ca |
| (424) 653- | Landline | Beverly Hills | Xo California |
| (424) 666- | Landline | Los Angeles | Telcentris Communications |
| (424) 672- | Landline | Culver City | O1 Communications |
| (424) 675- | Wireless | Los Angeles | New Cingular Wireless PCS |
| (424) 702- | Landline | Los Angeles | Pac - West Telecomm |
| (424) 703- | Wireless | San Pedro | Metropcs Networks |
| (424) 704- | Wireless | Los Angeles | Broadvox-clec |
| (424) 731- | Wireless | Torrance | Cellco Partnership DBA Verizon Wireless |
| (424) 732- | Landline | Los Angeles | Telcentris Communications |
| (424) 738- | Landline | San Pedro | Sbc Internet Services |
| (424) 744- | Landline | Santa Monica | Global Crossing Local Services-ca |
| (424) 750- | Landline | Inglewood | Global Crossing Local Services-ca |
| (424) 757- | Landline | Torrance | Pac - West Telecomm |
| (424) 772- | Landline | San Pedro | Cox California Telcom, L.l.c. |
| (424) 777- | Landline | Beverly Hills | Telcentris Communications |
| (424) 781- | Landline | Malibu | Ymax Communications Corp. |
| (424) 785- | Landline | Los Angeles | Level 3 Communications |
| (424) 789- | Landline | Los Angeles | Level 3 Communications |
| (424) 800- | Landline | Los Angeles | Cf Communications DBA Telekenex |
| (424) 832- | Wireless | W Los Angeles | Cellco Partnership DBA Verizon Wireless |
| (424) 835- | Landline | Mar Vista | Time Warner Cbl Info Svcs (ca) DBAtime Warner Cbl |
| (424) 888- | Landline | Inglewood | Telcentris Communications |
| (424) 900- | Landline | Los Angeles | Cf Communications DBA Telekenex |
| (424) 901- | Wireless | Los Angeles | Sprint Spectrum L.p. |
| (424) 903- | Landline | Hermosa Beach | Level 3 Communications |
| (424) 999- | Landline | Torrance | Telcentris Communications |
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