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: 217 [Rate centres in NPA 217] [Dial plan for NPA 217]

NXX: 731

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
217-731 A Clinton IL BLTNILATVMD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 366      
217-731 0 Clinton IL   624H ONVOY SPECTRUM, LLC 366      
217-731 1 Clinton IL BLTNILATVMD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 366      
217-731 2 Clinton IL BLTNILATOMD  6529 T-MOBILE USA, INC. 366      
217-731 4 Clinton IL BLTNILATVMD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 366      
217-731 6 Clinton IL BLTNILXDX0X  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 366      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.