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: 349

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
925-349 A Concord CA SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO 722      
925-349 0 Concord CA SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO 722      
925-349 1 Concord CA SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO 722      
925-349 2 Concord CA SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO 722      
925-349 3 Concord CA SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO 722      
925-349 4 Concord CA OKLDCA03XOY  318J COMCAST IP PHONE LLC 722      
925-349 5 Concord CA OKLDCA03XOY  318J COMCAST IP PHONE LLC 722      
925-349 6 Concord CA OKLDCA03XOY  318J COMCAST IP PHONE LLC 722      
925-349 7 Concord CA SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO 722      
925-349 8 Concord CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2010-09-05   
925-349 9 Concord CA OKLDCA03XOY  318J COMCAST IP PHONE LLC 722      

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.