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: 987

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
217-987 A Potomac IL PTMCILXCRS0  1000 FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL 370      
217-987 1 Potomac IL CHMPILCPX0Y  073H TELNYX LLC 370   2020-07-19   
217-987 2 Potomac IL CHMPILCPDS1  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 370   2015-10-30   
217-987 3 Potomac IL CHMPILCPOMD  224C ONVOY, LLC 370   2018-08-25   
217-987 4 Potomac IL CHMPILLW0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 370   2012-09-23   
217-987 5 Potomac IL PTMCILXCRS0  1000 FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL 370      
217-987 6 Potomac IL PTMCILXCRS0  1000 FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL 370      
217-987 7 Potomac IL CHMPILCPXOX  508J CENTURYLINK COMMUNICATIONS, LLC 370   2016-06-16   
217-987 8 Potomac IL CHMPILCPOMD  224C ONVOY, LLC 370   2019-07-05   
217-987 9 Potomac IL CHMPILCPOMD  224C ONVOY, LLC 370   2019-07-05   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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