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: UKIHCA12RS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
707-485 A Ukiah CA 9740 PACIFIC BELL 722      
707-485 0 Ukiah CA 9740 PACIFIC BELL 722      
707-485 1 Ukiah CA 9740 PACIFIC BELL 722      
707-485 5 Ukiah CA 9740 PACIFIC BELL 722      
707-485 6 Ukiah CA 9740 PACIFIC BELL 722      
707-485 7 Ukiah CA 9740 PACIFIC BELL 722      
707-485 8 Ukiah CA 9740 PACIFIC BELL 722      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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