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: 205

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-205 A Langham Creek TX HSTSTXJV6MD  508J CENTURYLINK COMMUNICATIONS, LLC 560      
346-205 0 Langham Creek TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2015-08-03   
346-205 1 Langham Creek TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-01-17   
346-205 2 Langham Creek TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-01-17   
346-205 3 Langham Creek TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-01-17   
346-205 4 Langham Creek TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-01-17   
346-205 5 Langham Creek TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-01-17   
346-205 6 Langham Creek TX   792K CHARTER IP ENABLED SERVICES, LLC 560   2016-07-23   
346-205 7 Langham Creek TX HSTSTXJV6MD  508J CENTURYLINK COMMUNICATIONS, LLC 560   2015-07-04   
346-205 8 Langham Creek TX HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2016-08-08   
346-205 9 Langham Creek TX   515J IP HORIZON LLC 560   2016-04-01   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.