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: FRBHCA11RS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
559-659 A Firebaugh CA 9740 PACIFIC BELL 728      
559-659 0 Firebaugh CA 9740 PACIFIC BELL 728      
559-659 1 Firebaugh CA 9740 PACIFIC BELL 728      
559-659 2 Firebaugh CA 9740 PACIFIC BELL 728      
559-659 3 Firebaugh CA 9740 PACIFIC BELL 728      
559-659 5 Firebaugh CA 9740 PACIFIC BELL 728      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.