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-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
530-462 A Sawyers Bar CA SWBRCAXF462  724      
530-465 A Oak Knoll CA OKNLCAXF465  724      
530-467 A Etna CA ETNACAXF467  724      
530-468 A Fort Jones CA FTJNCAXF468  724      
530-469 A Somes Bar CA SMBRCAXF469  724      
530-493 A Happy Camp CA HCMPCAXF493  724      
530-496 A Hamburg CA HMBGCAXF496  724      

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

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