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: SERNCAXGDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
707-785 A Timber Cove: Sea Ranch DA CA 4420 FRONTIER CALIFORNIA INC. 722      
707-785 1 Timber Cove: Sea Ranch DA CA 4420 FRONTIER CALIFORNIA INC. 722      
707-785 2 Timber Cove: Sea Ranch DA CA 4420 FRONTIER CALIFORNIA INC. 722      
707-785 3 Timber Cove: Sea Ranch DA CA 4420 FRONTIER CALIFORNIA INC. 722      

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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