Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 925 [Rate centres in NPA 925] [Dial plan for NPA 925]

NXX: 231

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
925-231 A Martinez CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
925-231 0 Martinez CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2004-10-16   
925-231 1 Martinez CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2005-03-15   
925-231 2 Martinez CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2003-09-14   
925-231 3 Martinez CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2012-08-02   
925-231 4 Martinez CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
925-231 5 Martinez CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2005-12-23   
925-231 6 Martinez CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-07-30   
925-231 7 Martinez CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2009-12-19   
925-231 8 Martinez CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2010-09-11   
925-231 9 Martinez CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2010-09-16   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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