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: 524

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
925-524 A Clayton CA CYTNCA11DS0  9740 PACIFIC BELL 722      
925-524 0 Clayton CA CYTNCA11DS0  9740 PACIFIC BELL 722      
925-524 2 Clayton CA FRMTCAEDDS2  7262 XO CALIFORNIA, INC. 722   2006-10-01   
925-524 3 Clayton CA HYWRCAMCDS0  7240 MCI WORLDCOM COMMUNICATIONS, INC., CA 722   2008-07-24   
925-524 6 Clayton CA HYWRCAMCDS0  7240 MCI WORLDCOM COMMUNICATIONS, INC., CA 722   2012-01-12   
925-524 7 Clayton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2009-12-18   
925-524 8 Clayton CA   6529 T-MOBILE USA, INC. 722   2021-05-07   
925-524 9 Clayton CA   6529 T-MOBILE USA, INC. 722   2021-05-07   

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

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