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: 999

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-999 A Huffman TX HSTNTXJADS6  319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560      
346-999 0 Huffman TX   903C ONVOY, LLC - TX 560   2020-08-22   
346-999 1 Huffman TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2018-12-27   
346-999 2 Huffman TX   903C ONVOY, LLC - TX 560   2019-02-18   
346-999 3 Huffman TX   965H FRACTEL, LLC 560   2020-07-19   
346-999 4 Huffman TX   965H FRACTEL, LLC 560   2020-07-19   
346-999 5 Huffman TX   965H FRACTEL, LLC 560   2020-07-19   
346-999 6 Huffman TX   903C ONVOY, LLC - TX 560   2016-01-29   
346-999 7 Huffman TX   508J CENTURYLINK COMMUNICATIONS, LLC 560   2015-05-21   
346-999 8 Huffman TX   903C ONVOY, LLC - TX 560   2020-08-22   
346-999 9 Huffman TX   319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560   2014-07-01   

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

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