Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 779 [Rate centres in NPA 779] [Dial plan for NPA 779]

NXX: 875

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-875 A Joliet IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
779-875 0 Joliet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2008-01-23   
779-875 1 Joliet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2008-01-23   
779-875 2 Joliet IL   6529 T-MOBILE USA, INC. 358   2011-03-15   
779-875 3 Joliet IL   5562 METROPCS, INC. 358   2007-08-26   
779-875 4 Joliet IL   5562 METROPCS, INC. 358   2007-08-26   
779-875 5 Joliet IL   5562 METROPCS, INC. 358   2007-08-26   
779-875 6 Joliet IL   5562 METROPCS, INC. 358   2007-08-26   
779-875 7 Joliet IL   6529 T-MOBILE USA, INC. 358   2007-08-26   
779-875 8 Joliet IL   6529 T-MOBILE USA, INC. 358   2007-08-26   
779-875 9 Joliet IL   6529 T-MOBILE USA, INC. 358   2007-08-26   

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

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