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: 977

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-977 A Baytown TX HSTNTXJAXBY  965H FRACTEL, LLC 560      
346-977 0 Baytown TX   6701 AERIAL COMMUNICATIONS, INC. 560   2019-11-21   
346-977 1 Baytown TX   6701 AERIAL COMMUNICATIONS, INC. 560   2021-09-10   
346-977 2 Baytown TX   318J COMCAST IP PHONE, LLC 560   2020-08-23   
346-977 3 Baytown TX   903C ONVOY, LLC - TX 560   2024-11-07   
346-977 4 Baytown TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2019-11-21   
346-977 5 Baytown TX   903C ONVOY, LLC - TX 560   2019-12-04   
346-977 6 Baytown TX   903C ONVOY, LLC - TX 560   2019-12-04   
346-977 7 Baytown TX   965H FRACTEL, LLC 560   2019-11-20   
346-977 8 Baytown TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-04-22   
346-977 9 Baytown TX   6701 AERIAL COMMUNICATIONS, INC. 560   2021-09-10   

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

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