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: 891

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
925-891 A Walnut Creek CA OKLDCAAN5MD  7379 MATRIX TELECOM, LLC. S/I/I TNCI - CA 722      
925-891 0 Walnut Creek CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
925-891 1 Walnut Creek CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
925-891 2 Walnut Creek CA SNFCCA21XPZ  553J WHITESKY COMMUNICATIONS, LLC 722      
925-891 3 Walnut Creek CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
925-891 4 Walnut Creek CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
925-891 6 Walnut Creek CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
925-891 7 Walnut Creek CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
925-891 8 Walnut Creek CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
925-891 9 Walnut Creek CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.