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: 566

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
317-566 A Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-566 0 Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-566 1 Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-566 2 Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-566 3 Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-566 4 Carmel IN IPLUINWX7MD  5562 METROPCS, INC. 336   2013-11-15   
317-566 5 Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-566 6 Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-566 7 Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-566 8 Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      
317-566 9 Carmel IN CRMLIN01DS0  9325 INDIANA BELL TEL CO INC 336      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.