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: 582

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-582 A Joliet IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
815-582 0 Joliet IL   6529 T-MOBILE USA, INC. 358   2005-11-27   
815-582 1 Joliet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2014-06-21   
815-582 2 Joliet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2016-10-05   
815-582 3 Joliet IL   318J COMCAST IP PHONE, LLC 358   2006-03-15   
815-582 4 Joliet IL   318J COMCAST IP PHONE, LLC 358   2006-03-15   
815-582 5 Joliet IL   5562 METROPCS, INC. 358   2006-04-09   
815-582 6 Joliet IL   6529 T-MOBILE USA, INC. 358   2006-07-15   
815-582 7 Joliet IL   6529 T-MOBILE USA, INC. 358   2006-07-15   
815-582 8 Joliet IL   6529 T-MOBILE USA, INC. 358   2006-07-15   
815-582 9 Joliet IL   6529 T-MOBILE USA, INC. 358   2006-06-08   

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

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