Local Calling Guide

Area code/prefix search

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NPA: 779 [Rate centres in NPA 779] [Dial plan for NPA 779]

NXX: 349

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-349 A Spring Valley IL PEORILPJX1Y  6529 T-MOBILE USA, INC. 368      
779-349 3 Spring Valley IL   224C ONVOY, LLC 368   2024-12-30   
779-349 7 Spring Valley IL   6529 T-MOBILE USA, INC. 368   2022-02-25   
779-349 8 Spring Valley IL   6529 T-MOBILE USA, INC. 368   2022-02-25   
779-349 9 Spring Valley IL   6529 T-MOBILE USA, INC. 368   2022-02-25   

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

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