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: 925 [Rate centres in NPA 925] [Dial plan for NPA 925]

NXX: 490

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
925-490 A Concord CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
925-490 0 Concord CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-07-21   
925-490 1 Concord CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-07-21   
925-490 2 Concord CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-07-21   
925-490 3 Concord CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-07-31   
925-490 4 Concord CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-07-31   
925-490 5 Concord CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-08-28   
925-490 6 Concord CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-08-28   
925-490 7 Concord CA SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722   2014-08-08   
925-490 8 Concord CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-08-28   
925-490 9 Concord CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-09-06   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.