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: 864

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
217-864 A Mount Zion IL MTZNILXCDS2  1015 FRONTIER NORTH, INC. - IL 374      
217-864 0 Mount Zion IL   1015 FRONTIER NORTH, INC. - IL 374      
217-864 1 Mount Zion IL   318J COMCAST IP PHONE, LLC 374   2006-08-25   
217-864 2 Mount Zion IL   1015 FRONTIER NORTH, INC. - IL 374      
217-864 3 Mount Zion IL   1015 FRONTIER NORTH, INC. - IL 374      
217-864 4 Mount Zion IL   1015 FRONTIER NORTH, INC. - IL 374      
217-864 5 Mount Zion IL   1015 FRONTIER NORTH, INC. - IL 374      
217-864 6 Mount Zion IL   1015 FRONTIER NORTH, INC. - IL 374      
217-864 7 Mount Zion IL   224C ONVOY, LLC 374   2023-05-27   
217-864 8 Mount Zion IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374   2005-02-14   
217-864 9 Mount Zion IL   1015 FRONTIER NORTH, INC. - IL 374      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.