Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]

NXX: 887

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-887 A Harvard IL RLMDILAGDS4  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
815-887 0 Harvard IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-04-27   
815-887 1 Harvard IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-04-27   
815-887 2 Harvard IL   829J PAETEC ITEL, LLC 358   2009-11-10   
815-887 3 Harvard IL   829J PAETEC ITEL, LLC 358   2008-08-14   
815-887 4 Harvard IL   495J STRATUS NETWORKS 358   2020-09-26   
815-887 5 Harvard IL   516C AT&T CORP. 358   2011-06-01   
815-887 6 Harvard IL   224C ONVOY, LLC 358   2014-05-10   
815-887 7 Harvard IL   508J CENTURYLINK COMMUNICATIONS, LLC 358   2014-02-25   
815-887 8 Harvard IL   224C ONVOY, LLC 358   2016-03-28   
815-887 9 Harvard IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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