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: 576

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
317-576 A Fishers IN FSHRIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-576 0 Fishers IN   9325 INDIANA BELL TEL CO INC 336      
317-576 1 Fishers IN   9325 INDIANA BELL TEL CO INC 336      
317-576 2 Fishers IN   4803 LEVEL 3 COMMUNICATIONS, LLC - IN 336   2013-12-27   
317-576 3 Fishers IN   097D ONVOY, LLC - IN 336   2012-02-09   
317-576 4 Fishers IN   4803 LEVEL 3 COMMUNICATIONS, LLC - IN 336   2011-12-31   
317-576 5 Fishers IN   9325 INDIANA BELL TEL CO INC 336      
317-576 6 Fishers IN   9325 INDIANA BELL TEL CO INC 336      
317-576 7 Fishers IN   9325 INDIANA BELL TEL CO INC 336      
317-576 8 Fishers IN   9325 INDIANA BELL TEL CO INC 336      
317-576 9 Fishers IN   9325 INDIANA BELL TEL CO INC 336      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.