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 9 10 11 12 13 14 15 16 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-605 A Compton: Compton DA CA CMTNCA01DS1  9740 PACIFIC BELL 730      
310-606 A El Segundo CA ELSGCA12DS0  9740 PACIFIC BELL 730      
310-607 A El Segundo CA ELSGCA12DS0  9740 PACIFIC BELL 730      
310-608 A Compton: Compton DA CA CMTNCA01DS0  9740 PACIFIC BELL 730      
310-609 A Compton: Compton DA CA CMTNCA01DS0  9740 PACIFIC BELL 730      
310-610 A Compton: Gardena DA CA LSANCARC80Z  6906 AMERICAN MESSAGING SERVICES, LLC 730      
310-612 A Compton: Gardena DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-02-25   
310-613 A Compton: Gardena DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-02-25   
310-614 A Beverly Hills CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-615 A El Segundo CA ELSGCA12DS0  9740 PACIFIC BELL 730      
310-616 A El Segundo CA ELSGCA12DS0  9740 PACIFIC BELL 730      
310-617 A Compton: Gardena DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-02-25   
310-618 A Torrance CA TRNCCA11DS0  9740 PACIFIC BELL 730      
310-619 A Torrance CA GRDNCA02DS3  7421 AT&T LOCAL 730      
310-620 A Beverly Hills CA LNBHCAAXDS0  707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 730      
310-621 A Culver City CA BRBNCAIZ9MD  6664 SPRINT SPECTRUM L.P. 730      
310-622 A West Los Angeles CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
310-623 A Beverly Hills CA BLFLCA01DS0  8322 MPOWER COMMUNICATIONS CORP - CA 730      
310-624 A Beverly Hills CA LSANCARC80Z  6906 AMERICAN MESSAGING SERVICES, LLC 730      
310-625 A Santa Monica: Mar Vista DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-02-25   
310-626 A Lomita CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
310-627 A Compton: Compton DA CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730      
310-628 A Santa Monica: Santa Monica DA CA IRVNCAAG8MD  6664 SPRINT SPECTRUM L.P. 730      
310-629 A Lakewood CA IRVNCAAG8MD  6664 SPRINT SPECTRUM L.P. 730      
310-630 A Compton: Gardena DA CA GRDNCA01DS0  9740 PACIFIC BELL 730      
310-631 A Compton: Compton DA CA CMTNCA01DS1  9740 PACIFIC BELL 730      
310-632 A Compton: Compton DA CA CMTNCA01DS1  9740 PACIFIC BELL 730      
310-633 A Santa Monica: Santa Monica DA CA SNMNCAXPKMD  7421 AT&T LOCAL 730      
310-634 A Torrance CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-635 A Compton: Compton DA CA CMTNCA01DS1  9740 PACIFIC BELL 730      
310-636 A Santa Monica: Mar Vista DA CA CLCYCAXG39K  2319 FRONTIER CALIFORNIA INC. 730      
310-637 A Compton: Compton DA CA CMTNCA01DS0  9740 PACIFIC BELL 730      
310-638 A Compton: Compton DA CA CMTNCA01DS1  9740 PACIFIC BELL 730      
310-639 A Compton: Compton DA CA CMTNCA01DS1  9740 PACIFIC BELL 730      
310-640 A El Segundo CA ELSGCA12DS0  9740 PACIFIC BELL 730      
310-641 A Inglewood CA LSANCA07DS0  9740 PACIFIC BELL 730      
310-642 A Inglewood CA LSANCA07DS0  9740 PACIFIC BELL 730      
310-643 A Hawthorne CA ELSGCA12DS0  9740 PACIFIC BELL 730      
310-644 A Hawthorne CA HWTHCA01DS0  9740 PACIFIC BELL 730      
310-645 A Inglewood CA LSANCA07DS0  9740 PACIFIC BELL 730      
310-646 A Inglewood CA LSANCA07DS0  9740 PACIFIC BELL 730      
310-647 A El Segundo CA ELSGCA12DS0  9740 PACIFIC BELL 730      
310-648 A El Segundo CA ELSGCA12DS0  9740 PACIFIC BELL 730      
310-649 A Inglewood CA LSANCA07DS0  9740 PACIFIC BELL 730      
310-650 A Compton: Gardena DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-02-25   
310-651 A Beverly Hills CA RVSDCAMLDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 730      
310-652 A Beverly Hills CA LSANCA08DS0  9740 PACIFIC BELL 730      
310-653 A El Segundo CA ELSGCA12DS0  9740 PACIFIC BELL 730      
310-654 A Inglewood CA IRVNCAAG8MD  6664 SPRINT SPECTRUM L.P. 730      
310-655 A West Los Angeles CA LSANCARC80Z  6906 AMERICAN MESSAGING SERVICES, LLC 730      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 >>

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.