Local Calling Guide

Area code/prefix search

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

NXX: 531

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-531 A Joliet IL OKBRILOADC2  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
815-531 0 Joliet IL CHCGILTCDS4  7056 XO ILLINOIS, INC. 358   2005-08-26   
815-531 1 Joliet IL CHCGILTCDS4  7056 XO ILLINOIS, INC. 358   2005-08-26   
815-531 2 Joliet IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2005-02-28   
815-531 3 Joliet IL CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358   2005-02-26   
815-531 4 Joliet IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2005-07-28   
815-531 5 Joliet IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2005-07-17   
815-531 6 Joliet IL CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358   2005-03-19   
815-531 7 Joliet IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2005-04-29   
815-531 8 Joliet IL OKBRILOADC2  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
815-531 9 Joliet IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2005-07-28   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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