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: 978

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-978 A Sandwich IL CHCGILWBXJZ  6265 UNITED STATES CELLULAR - IL 358      
779-978 0 Sandwich IL CHCGILWBXJZ  6265 UNITED STATES CELLULAR - IL 358   2015-08-01   
779-978 1 Sandwich IL   6529 T-MOBILE USA, INC. 358   2025-02-10   
779-978 6 Sandwich IL OKBRILOAXEX  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2022-02-16   
779-978 7 Sandwich IL CHCGIL24DS6  224C ONVOY, LLC 358   2019-08-24   
779-978 8 Sandwich IL   6529 T-MOBILE USA, INC. 358   2025-02-10   
779-978 9 Sandwich IL   6529 T-MOBILE USA, INC. 358   2025-02-10   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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