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: 773

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
217-773 A Mount Sterling IL MTSTILXCRS0  1015 FRONTIER NORTH, INC. - IL 376      
217-773 0 Mount Sterling IL JCVLILAA1MD  6265 UNITED STATES CELLULAR - IL 376   2019-11-11   
217-773 1 Mount Sterling IL JCVLILXCDMD  224C ONVOY, LLC 376   2021-04-04   
217-773 2 Mount Sterling IL MTSTILXCRS0  1015 FRONTIER NORTH, INC. - IL 376      
217-773 3 Mount Sterling IL MTSTILXCRS0  1015 FRONTIER NORTH, INC. - IL 376      
217-773 4 Mount Sterling IL MTSTILXCRS0  1015 FRONTIER NORTH, INC. - IL 376      
217-773 5 Mount Sterling IL JCVLILXCDMD  224C ONVOY, LLC 376   2020-04-19   
217-773 6 Mount Sterling IL JCVLILAA0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 376   2017-10-15   
217-773 7 Mount Sterling IL GLDNILAADS0  7091 ADAMS TELSYSTEMS, INC. 376   2007-12-13   
217-773 8 Mount Sterling IL JCVLILXCFMD  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 376   2019-11-11   
217-773 9 Mount Sterling IL MTSTILXCRS0  1015 FRONTIER NORTH, INC. - IL 376      

Last updated: Wed, 07 Feb 2024 04:12:25 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.