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
657-660 A Santa Ana CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2019-06-16   
657-660 0 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2019-10-16   
657-660 1 Santa Ana CA   649C ONVOY, LLC - CA 730   2019-06-21   
657-660 2 Santa Ana CA   649C ONVOY, LLC - CA 730   2019-06-21   
657-660 3 Santa Ana CA   649C ONVOY, LLC - CA 730   2019-06-21   
657-660 4 Santa Ana CA   649C ONVOY, LLC - CA 730   2019-06-21   
657-660 5 Santa Ana CA   7610 COMCAST PHONE OF CALIFORNIA, LLC - CA 730   2019-07-12   
657-660 6 Santa Ana CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2019-06-16   
657-660 7 Santa Ana CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2019-10-27   
657-660 8 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2019-10-16   
657-660 9 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2019-10-16   
657-666 A Westminster CA   649C ONVOY, LLC - CA 730      
657-666 0 Westminster CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-12-31   
657-666 1 Westminster CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-11-12   
657-666 2 Westminster CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-08-20   
657-666 3 Westminster CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2010-11-27   
657-666 4 Westminster CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-26   
657-666 5 Westminster CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-26   
657-666 6 Westminster CA   649C ONVOY, LLC - CA 730   2010-11-11   
657-666 7 Westminster CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2010-12-09   
657-666 8 Westminster CA   649C ONVOY, LLC - CA 730   2013-09-22   
657-666 9 Westminster CA   649C ONVOY, LLC - CA 730   2012-06-03   
657-667 A Garden Grove CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2013-08-22   
657-667 0 Garden Grove CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2013-08-22   
657-667 1 Garden Grove CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2013-08-23   
657-667 2 Garden Grove CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2013-08-23   
657-667 3 Garden Grove CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2013-08-23   
657-667 4 Garden Grove CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2013-08-23   
657-667 5 Garden Grove CA   7575 CENTURYLINK COMMUNICATIONS LLC 730   2013-11-30   
657-667 6 Garden Grove CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2013-12-20   
657-667 7 Garden Grove CA   649C ONVOY, LLC - CA 730   2013-09-21   
657-667 8 Garden Grove CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2013-08-23   
657-667 9 Garden Grove CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-09-04   
657-699 A Santa Ana CA   649C ONVOY, LLC - CA 730      
657-699 0 Santa Ana CA   649C ONVOY, LLC - CA 730   2015-05-14   
657-699 1 Santa Ana CA   649C ONVOY, LLC - CA 730   2015-05-14   
657-699 2 Santa Ana CA   649C ONVOY, LLC - CA 730   2015-05-14   
657-699 3 Santa Ana CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2015-05-20   
657-699 4 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-05-17   
657-699 5 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-05-17   
657-699 6 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-05-17   
657-699 7 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-05-17   
657-699 8 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-05-17   
657-699 9 Santa Ana CA   6664 SPRINT SPECTRUM L.P. 730   2015-05-15   
657-720 A Santa Ana CA   7661 COX CALIFORNIA TELCOM, LLC - CA 730   2017-09-22   
657-720 0 Santa Ana CA   320H VODEX COMMUNICATIONS CORPORATION - CA 730   2017-09-23   
657-720 1 Santa Ana CA   7610 COMCAST PHONE OF CALIFORNIA, LLC - CA 730   2017-10-20   
657-720 2 Santa Ana CA   7661 COX CALIFORNIA TELCOM, LLC - CA 730   2017-09-22   
657-720 3 Santa Ana CA   7661 COX CALIFORNIA TELCOM, LLC - CA 730   2017-09-22   
657-720 4 Santa Ana CA   7661 COX CALIFORNIA TELCOM, LLC - CA 730   2017-09-22   

<< 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: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.