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: 765

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-765 A Tomball TX HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2024-03-11   
346-765 0 Tomball TX   624H ONVOY SPECTRUM, LLC 560   2024-03-11   
346-765 1 Tomball TX   624H ONVOY SPECTRUM, LLC 560   2024-03-11   
346-765 2 Tomball TX   624H ONVOY SPECTRUM, LLC 560   2024-03-11   
346-765 3 Tomball TX   624H ONVOY SPECTRUM, LLC 560   2024-03-11   
346-765 4 Tomball TX   624H ONVOY SPECTRUM, LLC 560   2024-03-11   
346-765 5 Tomball TX   624H ONVOY SPECTRUM, LLC 560   2024-03-11   
346-765 6 Tomball TX   624H ONVOY SPECTRUM, LLC 560   2024-03-11   
346-765 7 Tomball TX   624H ONVOY SPECTRUM, LLC 560   2024-03-11   
346-765 8 Tomball TX   903C ONVOY, LLC - TX 560   2024-03-12   
346-765 9 Tomball TX   903C ONVOY, LLC - TX 560   2024-03-12   

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

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