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: 657 [Rate centres in NPA 657] [Dial plan for NPA 657]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-325 A Buena Park CA   649C ONVOY, LLC - CA 730      
657-325 0 Buena Park CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-07-29   
657-325 1 Buena Park CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-04-20   
657-325 2 Buena Park CA   649C ONVOY, LLC - CA 730   2017-06-15   
657-325 3 Buena Park CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-07-03   
657-325 4 Buena Park CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2017-09-21   
657-325 5 Buena Park CA   320H VODEX COMMUNICATIONS CORPORATION - CA 730   2018-04-19   
657-325 6 Buena Park CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2017-12-01   
657-325 7 Buena Park CA   649C ONVOY, LLC - CA 730   2016-05-21   
657-325 8 Buena Park CA   649C ONVOY, LLC - CA 730   2016-05-21   
657-325 9 Buena Park CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2016-09-02   
657-326 A Garden Grove CA   0051 SHELCOMM 730   2018-06-22   
657-327 A Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
657-327 0 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-06-26   
657-327 1 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-06-26   
657-327 2 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-06-26   
657-327 3 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-06-26   
657-327 4 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-06-26   
657-327 5 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-06-26   
657-327 6 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-06-26   
657-327 7 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2017-03-24   
657-327 8 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2017-04-25   
657-327 9 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2017-04-25   
657-328 A Santa Ana CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730      
657-328 0 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-07-12   
657-328 1 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-07-12   
657-328 2 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-07-12   
657-328 3 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-07-12   
657-328 4 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-07-12   
657-328 5 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-07-12   
657-328 6 Santa Ana CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2016-07-11   
657-328 7 Santa Ana CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2016-07-12   
657-328 8 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-07-12   
657-328 9 Santa Ana CA   7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 730   2016-07-12   
657-329 A Huntington Beach CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730      
657-329 0 Huntington Beach CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2016-06-30   
657-329 1 Huntington Beach CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2016-06-30   
657-329 2 Huntington Beach CA   073H TELNYX LLC 730   2017-06-02   
657-329 3 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2019-02-24   
657-329 4 Huntington Beach CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2017-08-31   
657-329 5 Huntington Beach CA   649C ONVOY, LLC - CA 730   2017-12-09   
657-329 6 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2018-06-11   
657-329 7 Huntington Beach CA   649C ONVOY, LLC - CA 730   2017-12-09   
657-329 8 Huntington Beach CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-12-03   
657-329 9 Huntington Beach CA   6529 T-MOBILE USA, INC. 730   2016-07-11   
657-330 A Fullerton CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-06-10   
657-330 0 Fullerton CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-06-10   
657-330 1 Fullerton CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-06-10   
657-330 2 Fullerton CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-06-10   
657-330 3 Fullerton CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-06-10   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 >>

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.