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: 631

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
217-631 A Monticello IL CHMPILLW0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 370      
217-631 0 Monticello IL CHMPILCPOMD  224C ONVOY, LLC 370   2019-07-05   
217-631 1 Monticello IL CHMPILCPXHX  593K MCC TELEPHONY LLC 370   2010-03-15   
217-631 2 Monticello IL CHMPILCPOMD  224C ONVOY, LLC 370   2021-08-19   
217-631 3 Monticello IL CHMPILCPOMD  224C ONVOY, LLC 370   2021-08-19   
217-631 4 Monticello IL CHMPILLW0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 370      
217-631 5 Monticello IL CHMPILCPX5Y  624H ONVOY SPECTRUM, LLC 370   2024-05-17   
217-631 6 Monticello IL CHMPILRAUMD  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 370   2017-11-02   
217-631 7 Monticello IL CHMPILCPXOX  508J CENTURYLINK COMMUNICATIONS, LLC 370   2016-06-14   
217-631 8 Monticello IL CHMPILCPOMD  224C ONVOY, LLC 370   2019-07-05   
217-631 9 Monticello IL CHMPILCPDS1  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 370   2015-10-30   

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

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