Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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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   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 374   2015-10-29   
217-438 1 Auburn IL   073H TELNYX LLC 374   2023-11-16   
217-438 2 Auburn IL   1015 FRONTIER NORTH, INC. - IL 374      
217-438 3 Auburn IL   1015 FRONTIER NORTH, INC. - IL 374      
217-438 4 Auburn IL   1015 FRONTIER NORTH, INC. - IL 374      
217-438 5 Auburn IL   1015 FRONTIER NORTH, INC. - IL 374      
217-438 6 Auburn IL   1015 FRONTIER NORTH, INC. - IL 374      
217-438 8 Auburn IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374   2017-10-15   
217-438 9 Auburn IL   1015 FRONTIER NORTH, INC. - IL 374      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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