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: 397

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
217-397 A Rankin IL RNKNILXCRS0  1000 FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL 370      
217-397 1 Rankin IL CHMPILCPDS1  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 370   2015-10-30   
217-397 2 Rankin IL RNKNILXCRS0  1000 FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL 370      
217-397 3 Rankin IL CHMPILCPOMD  224C ONVOY, LLC 370   2020-06-20   
217-397 4 Rankin IL CHMPILLW0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 370   2012-08-27   
217-397 5 Rankin IL CHMPILCPOMD  224C ONVOY, LLC 370   2020-06-20   
217-397 6 Rankin IL CHMPILCPOMD  224C ONVOY, LLC 370   2018-07-20   
217-397 7 Rankin IL CHMPILCPXOX  508J CENTURYLINK COMMUNICATIONS, LLC 370   2016-06-16   
217-397 8 Rankin IL CHMPILCPOMD  224C ONVOY, LLC 370   2019-07-05   
217-397 9 Rankin IL CHMPILCPOMD  224C ONVOY, LLC 370   2019-07-05   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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