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
657-269 4 Santa Ana CA   4733 PAETEC COMMUNICATIONS, INC. - CA 730   2010-04-23   
657-269 5 Santa Ana CA   8782 ALLEGIANCE TELECOM, INC. - CA 730   2010-07-03   
657-269 6 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2010-11-19   
657-269 7 Santa Ana CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2014-05-12   
657-269 8 Santa Ana CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-12-05   
657-269 9 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2010-11-19   
657-270 A Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
657-270 0 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-12-05   
657-270 1 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-12-05   
657-270 2 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-12-05   
657-270 3 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-12-05   
657-270 4 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-12-05   
657-270 5 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-12-05   
657-270 6 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-12-05   
657-270 7 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-12-05   
657-270 8 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-12-05   
657-270 9 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-12-05   
657-271 A Westminster CA   6529 T-MOBILE USA, INC. 730      
657-271 0 Westminster CA   4733 PAETEC COMMUNICATIONS, INC. - CA 730   2015-07-21   
657-271 1 Westminster CA   222H LOCAL ACCESS SERVICES LLC - CA 730   2015-09-19   
657-271 2 Westminster CA   649C ONVOY, LLC - CA 730   2015-08-17   
657-271 3 Westminster CA   6529 T-MOBILE USA, INC. 730   2015-09-17   
657-271 4 Westminster CA   6529 T-MOBILE USA, INC. 730   2015-09-17   
657-271 5 Westminster CA   6529 T-MOBILE USA, INC. 730   2015-07-04   
657-271 6 Westminster CA   6529 T-MOBILE USA, INC. 730   2015-07-04   
657-271 7 Westminster CA   6529 T-MOBILE USA, INC. 730   2015-07-04   
657-271 8 Westminster CA   6529 T-MOBILE USA, INC. 730   2015-07-04   
657-271 9 Westminster CA   6529 T-MOBILE USA, INC. 730   2015-07-04   
657-272 A Anaheim CA   6529 T-MOBILE USA, INC. 730      
657-272 0 Anaheim CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-07-20   
657-272 1 Anaheim CA   6529 T-MOBILE USA, INC. 730   2015-07-20   
657-272 2 Anaheim CA   6529 T-MOBILE USA, INC. 730   2015-07-20   
657-272 3 Anaheim CA   6529 T-MOBILE USA, INC. 730   2015-07-20   
657-272 4 Anaheim CA   6529 T-MOBILE USA, INC. 730   2015-07-20   
657-272 5 Anaheim CA   6529 T-MOBILE USA, INC. 730   2015-07-20   
657-272 6 Anaheim CA   6529 T-MOBILE USA, INC. 730   2015-07-20   
657-272 7 Anaheim CA   649C ONVOY, LLC - CA 730   2016-04-22   
657-272 8 Anaheim CA   649C ONVOY, LLC - CA 730   2016-04-22   
657-272 9 Anaheim CA   6529 T-MOBILE USA, INC. 730   2015-07-18   
657-273 A Santa Ana CA   6664 SPRINT SPECTRUM L.P. 730      
657-273 0 Santa Ana CA   6664 SPRINT SPECTRUM L.P. 730   2015-06-18   
657-273 1 Santa Ana CA   6664 SPRINT SPECTRUM L.P. 730   2015-06-18   
657-273 2 Santa Ana CA   6664 SPRINT SPECTRUM L.P. 730   2015-06-18   
657-273 3 Santa Ana CA   6664 SPRINT SPECTRUM L.P. 730   2015-06-18   
657-273 4 Santa Ana CA   6664 SPRINT SPECTRUM L.P. 730   2015-06-18   
657-273 5 Santa Ana CA   7240 MCI WORLDCOM COMMUNICATIONS, INC., CA 730   2016-02-09   
657-273 6 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-02-09   
657-273 7 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-02-09   
657-273 8 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-02-09   
657-273 9 Santa Ana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-02-09   

<< 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.