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.

NPA: 812 [Rate centres in NPA 812] [Dial plan for NPA 812]

NXX: 637

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
812-637 A West Harrison IN CNCNOHNSDS0  9348 CINCINNATI BELL 922      
812-637 0 West Harrison IN CNCNOHNSDS0  9348 CINCINNATI BELL 922      
812-637 1 West Harrison IN CNCNOHNSDS0  9348 CINCINNATI BELL 922      
812-637 2 West Harrison IN CNCNOHNSDS0  9348 CINCINNATI BELL 922      
812-637 3 West Harrison IN CNCNOHNSDS0  9348 CINCINNATI BELL 922      
812-637 4 West Harrison IN CNCNOHNSDS0  9348 CINCINNATI BELL 922      
812-637 5 West Harrison IN CNCNOHNSDS0  9348 CINCINNATI BELL 922      
812-637 6 West Harrison IN CNCNOHNSDS0  9348 CINCINNATI BELL 922      
812-637 7 West Harrison IN CNCNOHRE2MD  097D ONVOY, LLC - IN 922      
812-637 8 West Harrison IN CNCNOHNSDS0  9348 CINCINNATI BELL 922      
812-637 9 West Harrison IN CNCNOHNSDS0  9348 CINCINNATI BELL 922      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.