Local Calling Guide

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NPA: 346 [Rate centres in NPA 346] [Dial plan for NPA 346]

NXX: 671

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-671 A Baytown TX HSTNTXJAX6Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-671 0 Baytown TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560   2023-08-26   
346-671 1 Baytown TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2023-09-01   
346-671 2 Baytown TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560   2023-08-13   
346-671 3 Baytown TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2023-09-01   
346-671 4 Baytown TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2023-09-01   
346-671 5 Baytown TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2023-09-01   
346-671 6 Baytown TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2023-09-01   
346-671 7 Baytown TX HSTNTXJAX6Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2023-08-12   
346-671 8 Baytown TX HSTNTXJAX6Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2023-08-12   
346-671 9 Baytown TX HSTNTXJAX6Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2023-08-12   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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