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: 427

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
317-427 A Fairland IN IPLWINROBMD  2548 GLOBAL CROSSING LOCAL SERVICES, INC. - IN 336      
317-427 0 Fairland IN IPLTINUM3MD  318J COMCAST IP PHONE, LLC 336   2006-11-28   
317-427 1 Fairland IN IPLWINROBMD  2548 GLOBAL CROSSING LOCAL SERVICES, INC. - IN 336      
317-427 2 Fairland IN IPLWINROBMD  2548 GLOBAL CROSSING LOCAL SERVICES, INC. - IN 336      
317-427 3 Fairland IN IPLUINWX3MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 336   2004-03-29   
317-427 4 Fairland IN IPLWINROBMD  2548 GLOBAL CROSSING LOCAL SERVICES, INC. - IN 336      
317-427 5 Fairland IN IPLWINRO6MD  4803 LEVEL 3 COMMUNICATIONS, LLC - IN 336   2004-04-15   
317-427 6 Fairland IN IPLWINRO6MD  4803 LEVEL 3 COMMUNICATIONS, LLC - IN 336   2008-05-16   
317-427 7 Fairland IN IPLWINRO6MD  4803 LEVEL 3 COMMUNICATIONS, LLC - IN 336   2005-06-03   
317-427 8 Fairland IN IPLUINWX3MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 336   2008-11-13   
317-427 9 Fairland IN IPLWINROBMD  2548 GLOBAL CROSSING LOCAL SERVICES, INC. - IN 336      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.