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: 317 [Rate centres in NPA 317] [Dial plan for NPA 317]

NXX: 843

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
317-843 A Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-843 0 Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-843 1 Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-843 2 Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-843 3 Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-843 4 Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-843 5 Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-843 6 Carmel IN   097D ONVOY, LLC - IN 336   2013-07-13   
317-843 7 Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-843 8 Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-843 9 Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.