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: 477

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-477 A Humble TX HSTNTXJAXBY  965H FRACTEL, LLC 560      
346-477 0 Humble TX   073H TELNYX LLC 560   2021-03-19   
346-477 1 Humble TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2021-05-17   
346-477 2 Humble TX   318J COMCAST IP PHONE, LLC 560   2020-11-07   
346-477 3 Humble TX   903C ONVOY, LLC - TX 560   2021-02-18   
346-477 4 Humble TX   318J COMCAST IP PHONE, LLC 560   2020-11-07   
346-477 5 Humble TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2021-05-17   
346-477 6 Humble TX   318J COMCAST IP PHONE, LLC 560   2020-11-07   
346-477 7 Humble TX   965H FRACTEL, LLC 560   2020-09-05   
346-477 8 Humble TX   903C ONVOY, LLC - TX 560   2020-11-30   
346-477 9 Humble TX   903C ONVOY, LLC - TX 560   2020-11-30   

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

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