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.

Switch: SNJUCA10DS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
925-592 A Moraga CA 8322 MPOWER COMMUNICATIONS CORP - CA 722      
925-695 A Concord CA 8322 MPOWER COMMUNICATIONS CORP - CA 722      
925-723 A Martinez CA 8322 MPOWER COMMUNICATIONS CORP - CA 722      
925-724 A Livermore CA 8322 MPOWER COMMUNICATIONS CORP - CA 722      
925-725 A Danville CA 8322 MPOWER COMMUNICATIONS CORP - CA 722      
925-726 A Concord CA 8322 MPOWER COMMUNICATIONS CORP - CA 722      
925-727 A Antioch CA 8322 MPOWER COMMUNICATIONS CORP - CA 722      
925-954 A Walnut Creek CA 8322 MPOWER COMMUNICATIONS CORP - CA 722      

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Last updated: Sat, 11 Jul 2020 20:37:26 UTC

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