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: PTVLCA11DS0

Remotes:

Switch Switch name Switch type
CMNLCA11RS0  CAMP NELSON  RSC 
SPVLCA11RS0  SPRINGVILLE  RSC 
TRBLCA11RS0  TERRA BELLA  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
559-781 A Porterville CA 9740 PACIFIC BELL 728      
559-782 A Porterville CA 9740 PACIFIC BELL 728      
559-783 A Porterville CA 9740 PACIFIC BELL 728      
559-784 A Porterville CA 9740 PACIFIC BELL 728      
559-788 A Porterville CA 9740 PACIFIC BELL 728      
559-789 A Porterville CA 9740 PACIFIC BELL 728      
559-791 A Porterville CA 9740 PACIFIC BELL 728      
559-793 A Porterville CA 9740 PACIFIC BELL 728      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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