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: 974

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
317-974 A Indianapolis IN IPLSIN01DS2  9325 INDIANA BELL TEL CO INC 336      
317-974 0 Indianapolis IN IPLSIN01DS2  9325 INDIANA BELL TEL CO INC 336      
317-974 1 Indianapolis IN IPLSIN01DS2  9325 INDIANA BELL TEL CO INC 336      
317-974 2 Indianapolis IN IPLSIN01DS2  9325 INDIANA BELL TEL CO INC 336      
317-974 3 Indianapolis IN IPLSIN01DS2  9325 INDIANA BELL TEL CO INC 336      
317-974 4 Indianapolis IN IPLSIN01DS2  9325 INDIANA BELL TEL CO INC 336      
317-974 5 Indianapolis IN IPLSIN01DS2  9325 INDIANA BELL TEL CO INC 336      
317-974 6 Indianapolis IN IPLSIN01DS2  9325 INDIANA BELL TEL CO INC 336      
317-974 7 Indianapolis IN IPLSIN01DS2  9325 INDIANA BELL TEL CO INC 336      
317-974 8 Indianapolis IN IPLSIN01DS2  9325 INDIANA BELL TEL CO INC 336      
317-974 9 Indianapolis IN IPLSINATJMD  516C AT&T CORP. 336   2010-05-04   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.