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: 421

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
317-421 A Shelbyville IN SHVLIN01DS1  9325 INDIANA BELL TEL CO INC 336      
317-421 0 Shelbyville IN SHVLIN01DS1  9325 INDIANA BELL TEL CO INC 336      
317-421 1 Shelbyville IN SHVLIN01DS1  9325 INDIANA BELL TEL CO INC 336      
317-421 2 Shelbyville IN SHVLIN01DS1  9325 INDIANA BELL TEL CO INC 336      
317-421 3 Shelbyville IN SHVLIN01DS1  9325 INDIANA BELL TEL CO INC 336      
317-421 4 Shelbyville IN SHVLIN01DS1  9325 INDIANA BELL TEL CO INC 336      
317-421 5 Shelbyville IN SHVLIN01DS1  9325 INDIANA BELL TEL CO INC 336      
317-421 6 Shelbyville IN FSHRINFC2MD  6158 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - IN 336   2012-07-24   
317-421 7 Shelbyville IN IPLWIN75DS5  097D ONVOY, LLC - IN 336   2012-11-12   
317-421 8 Shelbyville IN SHVLIN01DS1  9325 INDIANA BELL TEL CO INC 336      
317-421 9 Shelbyville IN IPLUINJGBMD  6725 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 336   2013-03-20   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.