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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

NXX: 924

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-924 A Houston TX   490J BOOST SUBSCRIBERCO L.L.C. 560   2026-06-09   
346-924 0 Houston TX   490J BOOST SUBSCRIBERCO L.L.C. 560   2026-06-09   
346-924 1 Houston TX   490J BOOST SUBSCRIBERCO L.L.C. 560   2026-07-07   
346-924 2 Houston TX   490J BOOST SUBSCRIBERCO L.L.C. 560   2026-08-11   
346-924 3 Houston TX   490J BOOST SUBSCRIBERCO L.L.C. 560   2026-09-16   
346-924 4 Houston TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-06-10   
346-924 5 Houston TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-06-10   
346-924 6 Houston TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-06-10   
346-924 7 Houston TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-06-10   
346-924 8 Houston TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-06-10   
346-924 9 Houston TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2026-06-10   

Last updated: Sat, 02 May 2026 12:20:53 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.