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: 850

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-850 A Cypress TX   903C ONVOY, LLC - TX 560   2025-03-02   
346-850 0 Cypress TX   903C ONVOY, LLC - TX 560   2025-03-02   
346-850 1 Cypress TX   903C ONVOY, LLC - TX 560   2025-03-09   
346-850 2 Cypress TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2025-07-02   
346-850 3 Cypress TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2025-07-02   
346-850 4 Cypress TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2025-07-02   
346-850 5 Cypress TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2025-07-26   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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