Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 310 [Rate centres in NPA 310] [Dial plan for NPA 310]

Block: A

<< 1 2 3 4 5 6 7 8 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-301 A Santa Monica: Mar Vista DA CA PDRYCAXF82A  2319 FRONTIER CALIFORNIA INC. 730      
310-302 A Santa Monica: Mar Vista DA CA PDRYCAXF82A  2319 FRONTIER CALIFORNIA INC. 730      
310-303 A Redondo CA GRDNCA01DS0  7480 PACIFIC BELL (COMPETITIVE) 730      
310-304 A Lomita CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
310-305 A Santa Monica: Mar Vista DA CA PDRYCAXF82A  2319 FRONTIER CALIFORNIA INC. 730      
310-306 A Santa Monica: Mar Vista DA CA PDRYCAXF82A  2319 FRONTIER CALIFORNIA INC. 730      
310-307 A West Los Angeles CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-308 A Compton: Gardena DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-309 A Santa Monica: Santa Monica DA CA LSANCA03DS3  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
310-310 A Santa Monica: Santa Monica DA CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-312 A West Los Angeles CA WLANCAXFDS1  2319 FRONTIER CALIFORNIA INC. 730      
310-313 A Santa Monica: Mar Vista DA CA CLCYCAXG39K  2319 FRONTIER CALIFORNIA INC. 730      
310-314 A Santa Monica: Santa Monica DA CA SNMNCAXJ31K  2319 FRONTIER CALIFORNIA INC. 730      
310-315 A Santa Monica: Santa Monica DA CA WLANCAXH82J  2319 FRONTIER CALIFORNIA INC. 730      
310-316 A Redondo CA TRNCCAXF54K  2319 FRONTIER CALIFORNIA INC. 730      
310-317 A Malibu CA MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-318 A Redondo CA HRBHCAXA37K  2319 FRONTIER CALIFORNIA INC. 730      
310-319 A Santa Monica: Santa Monica DA CA SNMNCAXGDS0  2319 FRONTIER CALIFORNIA INC. 730      
310-320 A Torrance CA TRNCCA11DS0  9740 PACIFIC BELL 730      
310-321 A El Segundo CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-322 A El Segundo CA ELSGCA12DS0  9740 PACIFIC BELL 730      
310-323 A Compton: Gardena DA CA GRDNCA01DS0  9740 PACIFIC BELL 730      
310-324 A Compton: Gardena DA CA GRDNCA01DS1  9740 PACIFIC BELL 730      
310-325 A Lomita CA LOMTCA11DS0  9740 PACIFIC BELL 730      
310-326 A Lomita CA LOMTCA11DS0  9740 PACIFIC BELL 730      
310-327 A Compton: Gardena DA CA GRDNCA01DS1  9740 PACIFIC BELL 730      
310-328 A Torrance CA TRNCCA11DS0  9740 PACIFIC BELL 730      
310-329 A Compton: Gardena DA CA GRDNCA01DS1  9740 PACIFIC BELL 730      
310-330 A Inglewood CA IGWDCA01DS0  9740 PACIFIC BELL 730      
310-331 A Hawthorne CA HWTHCA01DS0  9740 PACIFIC BELL 730      
310-332 A Hawthorne CA HWTHCA01DS0  9740 PACIFIC BELL 730      
310-333 A El Segundo CA ELSGCA12DS0  9740 PACIFIC BELL 730      
310-334 A El Segundo CA ELSGCA12DS0  9740 PACIFIC BELL 730      
310-335 A El Segundo CA ELSGCA12DS0  9740 PACIFIC BELL 730      
310-336 A El Segundo CA ELSGCA12DS0  9740 PACIFIC BELL 730      
310-337 A Inglewood CA LSANCA07DS0  9740 PACIFIC BELL 730      
310-338 A Inglewood CA LSANCA07DS0  9740 PACIFIC BELL 730      
310-339 A Santa Monica: Mar Vista DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
310-340 A Hawthorne CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-341 A El Segundo CA LSANCA03DS7  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
310-342 A Inglewood CA LSANCA07DS0  9740 PACIFIC BELL 730      
310-343 A El Segundo CA LSANCA03DS7  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
310-344 A Compton: Gardena DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-345 A Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-346 A Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-347 A Torrance CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-348 A Inglewood CA LSANCA07DS0  9740 PACIFIC BELL 730      
310-349 A Hawthorne CA HWTHCA01DS0  9740 PACIFIC BELL 730      
310-350 A Torrance CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2024-02-09   
310-351 A Santa Monica: Mar Vista DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
310-352 A Compton: Gardena DA CA GRDNCA01DS0  9740 PACIFIC BELL 730      
310-353 A Compton: Gardena DA CA GRDNCA01DS0  9740 PACIFIC BELL 730      
310-354 A Compton: Gardena DA CA GRDNCA01DS0  9740 PACIFIC BELL 730      
310-355 A Hawthorne CA HWTHCA01DS0  9740 PACIFIC BELL 730      
310-356 A El Segundo CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
310-357 A Torrance CA LSANCA03DS7  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
310-358 A Beverly Hills CA LSANCA08DS0  9740 PACIFIC BELL 730      
310-359 A Malibu CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-360 A Beverly Hills CA LSANCA08DS1  9740 PACIFIC BELL 730      
310-361 A Compton: Compton DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
310-362 A Beverly Hills CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
310-363 A Hawthorne CA ELSGCA12DS0  9740 PACIFIC BELL 730      
310-364 A El Segundo CA ELSGCA12DS0  9740 PACIFIC BELL 730      
310-365 A Compton: Gardena DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
310-366 A Compton: Gardena DA CA GRDNCA01DS0  9740 PACIFIC BELL 730      
310-367 A Santa Monica: Mar Vista DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
310-368 A Compton: Gardena DA CA LSANCA05TMD  6630 USA MOBILITY WIRELESS, INC. 730      
310-369 A Beverly Hills CA LSANCA03DS3  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
310-370 A Redondo CA RDBHCAXF37K  2319 FRONTIER CALIFORNIA INC. 730      
310-371 A Redondo CA RDBHCAXF37K  2319 FRONTIER CALIFORNIA INC. 730      
310-372 A Redondo CA HRBHCAXA37K  2319 FRONTIER CALIFORNIA INC. 730      
310-373 A Redondo CA TRNCCAXG37J  2319 FRONTIER CALIFORNIA INC. 730      
310-374 A Redondo CA HRBHCAXA37K  2319 FRONTIER CALIFORNIA INC. 730      
310-375 A Redondo CA TRNCCAXG37J  2319 FRONTIER CALIFORNIA INC. 730      
310-376 A Redondo CA HRBHCAXA37K  2319 FRONTIER CALIFORNIA INC. 730      
310-377 A Redondo CA RLHLCAXF79L  2319 FRONTIER CALIFORNIA INC. 730      
310-378 A Redondo CA TRNCCAXG37J  2319 FRONTIER CALIFORNIA INC. 730      
310-379 A Redondo CA HRBHCAXA37K  2319 FRONTIER CALIFORNIA INC. 730      
310-380 A Compton: Gardena DA CA GRDNCA01DS0  9740 PACIFIC BELL 730      
310-381 A Torrance CA TRNCCA11DS0  9740 PACIFIC BELL 730      
310-382 A Santa Monica: Santa Monica DA CA ONTRCAFXDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 730      
310-383 A Santa Monica: Mar Vista DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-384 A Culver City CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-385 A Beverly Hills CA BVHLCA01DS0  9740 PACIFIC BELL 730      
310-386 A Compton: Gardena DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
310-387 A Compton: Gardena DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
310-388 A Beverly Hills CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
310-389 A Compton: Gardena DA CA LSANCA039MD  9748 AMERICAN MESSAGING SERVICES, LLC 730      
310-390 A Santa Monica: Mar Vista DA CA CLCYCAXG39K  2319 FRONTIER CALIFORNIA INC. 730      
310-391 A Santa Monica: Mar Vista DA CA CLCYCAXG39K  2319 FRONTIER CALIFORNIA INC. 730      
310-392 A Santa Monica: Santa Monica DA CA SNMNCAXJ31K  2319 FRONTIER CALIFORNIA INC. 730      
310-393 A Santa Monica: Santa Monica DA CA SNMNCAXGDS0  2319 FRONTIER CALIFORNIA INC. 730      
310-394 A Santa Monica: Santa Monica DA CA SNMNCAXGDS0  2319 FRONTIER CALIFORNIA INC. 730      
310-395 A Santa Monica: Santa Monica DA CA SNMNCAXGDS0  2319 FRONTIER CALIFORNIA INC. 730      
310-396 A Santa Monica: Santa Monica DA CA SNMNCAXJ31K  2319 FRONTIER CALIFORNIA INC. 730      
310-397 A Santa Monica: Mar Vista DA CA CLCYCAXG39K  2319 FRONTIER CALIFORNIA INC. 730      
310-398 A Santa Monica: Mar Vista DA CA CLCYCAXG39K  2319 FRONTIER CALIFORNIA INC. 730      
310-399 A Santa Monica: Santa Monica DA CA SNMNCAXJ31K  2319 FRONTIER CALIFORNIA INC. 730      
310-400 A Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-401 A Santa Monica: Santa Monica DA CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      

<< 1 2 3 4 5 6 7 8 >>

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.