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: 438

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
217-438 A Auburn IL AUBNILXCRS0  1015 FRONTIER NORTH, INC. - IL 374      
217-438 0 Auburn IL SPFDILESDS3  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 374   2015-10-29   
217-438 1 Auburn IL SPFDILMBWMD  073H TELNYX LLC 374   2023-11-16   
217-438 2 Auburn IL AUBNILXCRS0  1015 FRONTIER NORTH, INC. - IL 374      
217-438 3 Auburn IL AUBNILXCRS0  1015 FRONTIER NORTH, INC. - IL 374      
217-438 4 Auburn IL AUBNILXCRS0  1015 FRONTIER NORTH, INC. - IL 374      
217-438 5 Auburn IL AUBNILXCRS0  1015 FRONTIER NORTH, INC. - IL 374      
217-438 6 Auburn IL AUBNILXCRS0  1015 FRONTIER NORTH, INC. - IL 374      
217-438 8 Auburn IL SPFDILMB0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374   2017-10-15   
217-438 9 Auburn IL AUBNILXCRS0  1015 FRONTIER NORTH, INC. - IL 374      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.