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: SKTNCA01XMY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
209-210 A Lodi CA 7453 US TELEPACIFIC CORP. - CA 738      
209-216 A Turlock CA 7453 US TELEPACIFIC CORP. - CA 738      
209-229 A Tracy CA 7453 US TELEPACIFIC CORP. - CA 738      
209-232 A Modesto CA 7453 US TELEPACIFIC CORP. - CA 738      
209-337 A Stockton CA 7453 US TELEPACIFIC CORP. - CA 738      

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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