Local Calling Guide

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

NXX: 856

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-856 A Channelview TX HSTNTXYAOMD  515J IP HORIZON LLC 560   2025-04-03   
346-856 0 Channelview TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2025-04-04   
346-856 1 Channelview TX HSTNTXYAOMD  515J IP HORIZON LLC 560   2025-04-03   
346-856 2 Channelview TX HSTNTXYAOMD  515J IP HORIZON LLC 560   2025-04-03   
346-856 3 Channelview TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2025-04-04   
346-856 4 Channelview TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2025-04-04   
346-856 5 Channelview TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2025-09-09   
346-856 6 Channelview TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2025-09-09   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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