Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 346 [Rate centres in NPA 346] [Dial plan for NPA 346]

NXX: 879

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-879 A Houston TX   700J WAVENATION, LLC 560   2025-09-12   
346-879 0 Houston TX   700J WAVENATION, LLC 560   2025-09-12   
346-879 1 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2025-09-17   
346-879 2 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2025-09-17   
346-879 3 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2025-09-17   
346-879 4 Houston TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2025-09-17   
346-879 5 Houston TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2025-09-18   
346-879 6 Houston TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2025-09-18   
346-879 7 Houston TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2025-09-18   
346-879 8 Houston TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2025-09-18   
346-879 9 Houston TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2025-09-18   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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