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: 820

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
317-820 A Indianapolis IN IPLSINATJMD  516C AT&T CORP. 336      
317-820 0 Indianapolis IN IPLWIN75DS5  097D ONVOY, LLC - IN 336   2015-05-04   
317-820 1 Indianapolis IN IPLUINWX3MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 336   2015-08-14   
317-820 2 Indianapolis IN IPLWIN75DS5  097D ONVOY, LLC - IN 336   2015-05-14   
317-820 3 Indianapolis IN IPLSINATJMD  516C AT&T CORP. 336   2015-04-07   
317-820 4 Indianapolis IN IPLUINWX3MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 336   2015-08-14   
317-820 5 Indianapolis IN IPLSINATJMD  516C AT&T CORP. 336   2015-01-23   
317-820 6 Indianapolis IN IPLYINCPGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 336   2015-02-21   
317-820 7 Indianapolis IN IPLYINCPGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 336   2015-02-21   
317-820 8 Indianapolis IN IPLYINCPGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 336   2015-02-21   
317-820 9 Indianapolis IN IPLYINCPGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 336   2015-02-21   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.