Local Calling Guide

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NPA: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]

NXX: 587

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-587 A Ottawa IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-587 0 Ottawa IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-587 1 Ottawa IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-10-22   
815-587 2 Ottawa IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2005-12-19   
815-587 3 Ottawa IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-07-02   
815-587 4 Ottawa IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2005-12-19   
815-587 5 Ottawa IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2007-12-13   
815-587 6 Ottawa IL   460K FIRST COMMUNICATIONS, LLC 358   2005-03-19   
815-587 7 Ottawa IL   224C ONVOY, LLC 358   2014-07-07   
815-587 8 Ottawa IL   5447 ACCESS ONE, INC. - IL 358   2006-08-07   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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