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: 663

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-663 A Highlands TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560      
346-663 0 Highlands TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560   2023-10-29   
346-663 1 Highlands TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560   2023-10-29   
346-663 2 Highlands TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560   2023-07-15   
346-663 3 Highlands TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560   2023-01-16   
346-663 4 Highlands TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560   2023-01-16   
346-663 8 Highlands TX   903C ONVOY, LLC - TX 560   2025-02-02   

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

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