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: CLMBIN02RSF

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
812-341 A Columbus IN 9325 INDIANA BELL TEL CO INC 338      
812-341 2 Columbus IN 9325 INDIANA BELL TEL CO INC 338      
812-341 3 Columbus IN 9325 INDIANA BELL TEL CO INC 338      
812-342 A Columbus IN 9325 INDIANA BELL TEL CO INC 338      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.