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.
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Switch: SHLKCA01RS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
530-238 A Shasta Lake CA 9740 PACIFIC BELL 724      
530-238 1 Shasta Lake CA 9740 PACIFIC BELL 724      
530-238 2 Shasta Lake CA 9740 PACIFIC BELL 724      
530-238 8 Shasta Lake CA 9740 PACIFIC BELL 724      
530-238 9 Shasta Lake CA 9740 PACIFIC BELL 724      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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