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.

Walnut Creek, CA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
925-954 9 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-10-30   
925-955 A SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
925-956 A HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
925-956 0 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
925-956 1 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
925-956 2   5562 METROPCS, INC. 722   2007-08-09   
925-956 3 OKLECAZVGT0  5562 METROPCS, INC. 722   2011-03-14   
925-956 4 OKLDCAMP1MD  4733 PAETEC COMMUNICATIONS, INC. - CA 722   2009-04-16   
925-956 5 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2004-09-24   
925-956 6 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2007-08-09   
925-956 7 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722   2006-10-09   
925-956 8 OKLECAZVGT0  5562 METROPCS, INC. 722   2006-11-30   
925-956 9 OKLECAZVGT0  5562 METROPCS, INC. 722   2006-09-25   
925-974 A WNCKCA11DS0  9740 PACIFIC BELL 722      
925-975 A WNCKCA11DS0  9740 PACIFIC BELL 722      
925-977 A WNCKCA11DS1  9740 PACIFIC BELL 722      
925-979 A WNCKCA11DS0  9740 PACIFIC BELL 722      
925-979 0 WNCKCA11DS0  9740 PACIFIC BELL 722      
925-979 1 WNCKCA11DS0  9740 PACIFIC BELL 722      
925-979 2 WNCKCA11DS0  9740 PACIFIC BELL 722      
925-979 3 WNCKCA11DS0  9740 PACIFIC BELL 722      
925-979 4 WNCKCA11DS0  9740 PACIFIC BELL 722      
925-979 5 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2008-11-23   
925-979 6 WNCKCA11DS0  9740 PACIFIC BELL 722      
925-979 7 WNCKCA11DS0  9740 PACIFIC BELL 722      
925-979 8 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2011-02-05   
925-979 9 WNCKCA11DS0  9740 PACIFIC BELL 722      
925-988 A WNCKCA11DS0  9740 PACIFIC BELL 722      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.