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 53 54 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-241 9 Huntington Beach CA   4733 PAETEC COMMUNICATIONS, INC. - CA 730   2013-11-16   
657-242 A Anaheim CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
657-242 0 Anaheim CA   6529 T-MOBILE USA, INC. 730   2019-02-24   
657-242 1 Anaheim CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2019-03-03   
657-242 2 Anaheim CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2014-06-19   
657-242 3 Anaheim CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2014-08-16   
657-242 4 Anaheim CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2018-07-14   
657-242 5 Anaheim CA   6529 T-MOBILE USA, INC. 730   2015-03-31   
657-242 6 Anaheim CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-08-08   
657-242 7 Anaheim CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-09-08   
657-242 8 Anaheim CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-10-08   
657-242 9 Anaheim CA   4733 PAETEC COMMUNICATIONS, INC. - CA 730   2014-06-27   
657-243 A Fullerton CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
657-243 0 Fullerton CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-09-05   
657-243 1 Fullerton CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-09-05   
657-243 2 Fullerton CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-09-07   
657-243 3 Fullerton CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-09-05   
657-243 4 Fullerton CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-09-05   
657-243 5 Fullerton CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2014-09-10   
657-243 6 Fullerton CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-10-09   
657-243 7 Fullerton CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-08-25   
657-243 8 Fullerton CA   649C ONVOY, LLC - CA 730   2014-10-15   
657-243 9 Fullerton CA   649C ONVOY, LLC - CA 730   2014-10-15   
657-244 A Huntington Beach CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
657-244 0 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-10-21   
657-244 1 Huntington Beach CA   649C ONVOY, LLC - CA 730   2014-12-15   
657-244 2 Huntington Beach CA   649C ONVOY, LLC - CA 730   2014-12-15   
657-244 3 Huntington Beach CA   6529 T-MOBILE USA, INC. 730   2015-03-18   
657-244 4 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-11-06   
657-244 5 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-12-06   
657-244 6 Huntington Beach CA   6529 T-MOBILE USA, INC. 730   2015-03-18   
657-244 7 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-12-31   
657-244 8 Huntington Beach CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2014-12-07   
657-244 9 Huntington Beach CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2014-10-20   
657-245 A Santa Ana CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-06-04   
657-245 0 Santa Ana CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-06-04   
657-245 1 Santa Ana CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-06-04   
657-245 2 Santa Ana CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-06-04   
657-245 3 Santa Ana CA   516C AT&T CORP. 730   2014-09-15   
657-245 4 Santa Ana CA   649C ONVOY, LLC - CA 730   2014-09-20   
657-245 5 Santa Ana CA   649C ONVOY, LLC - CA 730   2014-09-20   
657-245 6 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-10-16   
657-245 7 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-09-15   
657-245 8 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-09-30   
657-245 9 Santa Ana CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-06-04   
657-246 A Brea CA   6529 T-MOBILE USA, INC. 730      
657-246 0 Brea CA   649C ONVOY, LLC - CA 730   2014-11-11   
657-246 1 Brea CA   649C ONVOY, LLC - CA 730   2014-11-11   
657-246 2 Brea CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2015-02-13   
657-246 3 Brea CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2015-02-13   

<< 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 53 54 >>

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.