Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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NPA: 346 [Rate centres in NPA 346] [Dial plan for NPA 346]

NXX: 905

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-905 A Spring TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-02-06   
346-905 0 Spring TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-02-06   
346-905 1 Spring TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-02-06   
346-905 2 Spring TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-02-06   

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

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