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: 759

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
217-759 A Bismarck IL BSMRILXCRS1  1036 FRONTIER NORTH, INC. - IL 370      
217-759 1 Bismarck IL CHMPILCPOMD  224C ONVOY, LLC 370   2019-07-05   
217-759 2 Bismarck IL CHMPILCPOMD  224C ONVOY, LLC 370   2018-08-25   
217-759 3 Bismarck IL CHMPILLW0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 370   2006-04-24   
217-759 4 Bismarck IL CHMPILLW0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 370   2004-07-16   
217-759 5 Bismarck IL CHMPILCPXOX  508J CENTURYLINK COMMUNICATIONS, LLC 370   2016-06-17   
217-759 6 Bismarck IL CHMPILCPDS1  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 370   2015-11-04   
217-759 7 Bismarck IL BSMRILXCRS1  1036 FRONTIER NORTH, INC. - IL 370      
217-759 8 Bismarck IL BSMRILXCRS1  1036 FRONTIER NORTH, INC. - IL 370      
217-759 9 Bismarck IL CHMPILCPOMD  224C ONVOY, LLC 370   2019-07-05   

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

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