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: 342

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-342 A Houston Suburban TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
346-342 0 Houston Suburban TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-09-15   
346-342 1 Houston Suburban TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2018-07-13   
346-342 2 Houston Suburban TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-09-15   
346-342 3 Houston Suburban TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-09-15   
346-342 4 Houston Suburban TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2018-09-01   
346-342 5 Houston Suburban TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-07-28   
346-342 6 Houston Suburban TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-07-28   
346-342 7 Houston Suburban TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-07-28   
346-342 8 Houston Suburban TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-07-28   
346-342 9 Houston Suburban TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-07-28   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.