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]

NXX: 222

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-222 A Cypress CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
657-222 0 Cypress CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-12-13   
657-222 1 Cypress CA LNBHCAXPXQX  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-02-19   
657-222 2 Cypress CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2010-11-11   
657-222 3 Cypress CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-26   
657-222 4 Cypress CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-26   
657-222 5 Cypress CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2012-04-09   
657-222 6 Cypress CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-26   
657-222 7 Cypress CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2011-01-31   
657-222 8 Cypress CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2013-03-29   
657-222 9 Cypress CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2013-03-29   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.