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: 375

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-375 A Joliet IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
779-375 0 Joliet IL   224C ONVOY, LLC 358   2023-09-11   
779-375 1 Joliet IL   224C ONVOY, LLC 358   2024-02-22   
779-375 2 Joliet IL   224C ONVOY, LLC 358   2024-02-22   
779-375 3 Joliet IL   224C ONVOY, LLC 358   2024-02-22   
779-375 4 Joliet IL   224C ONVOY, LLC 358   2024-02-22   
779-375 5 Joliet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2024-04-22   
779-375 6 Joliet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2023-10-08   
779-375 7 Joliet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2023-10-08   
779-375 8 Joliet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2023-10-08   
779-375 9 Joliet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2023-09-09   

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

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