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.

Mount Zion, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
217-350 A SPFDILMBTMD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-350 0   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-350 1   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 374   2015-10-30   
217-350 3   5562 METRO PCS, INC. 374   2015-07-04   
217-350 4   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-350 6   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 374   2019-04-08   
217-350 7   224C ONVOY, LLC 374   2019-07-27   
217-350 8   224C ONVOY, LLC 374   2019-07-27   
217-571 A DCTRILDCUMD  7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 374   2007-10-05   
217-571 0   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 374   2007-10-05   
217-571 2   224C ONVOY, LLC 374   2020-05-21   
217-571 3   224C ONVOY, LLC 374   2020-05-21   
217-571 4   224C ONVOY, LLC 374   2020-05-21   
217-571 7   224C ONVOY, LLC 374   2018-07-30   
217-864 A MTZNILXCDS2  1015 FRONTIER NORTH, INC. - IL 374      
217-864 0   1015 FRONTIER NORTH, INC. - IL 374      
217-864 1   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 374   2006-08-25   
217-864 2   1015 FRONTIER NORTH, INC. - IL 374      
217-864 3   1015 FRONTIER NORTH, INC. - IL 374      
217-864 4   1015 FRONTIER NORTH, INC. - IL 374      
217-864 5   1015 FRONTIER NORTH, INC. - IL 374      
217-864 6   1015 FRONTIER NORTH, INC. - IL 374      
217-864 8   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374   2005-02-14   
217-864 9   1015 FRONTIER NORTH, INC. - IL 374      

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.