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: 314 [Rate centres in NPA 314] [Dial plan for NPA 314]

NXX: 339

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
314-339 A St Louis MO STLVMOOH6MD  5562 METROPCS, INC. 520      
314-339 0 St Louis MO   5562 METROPCS, INC. 520   2014-08-24   
314-339 1 St Louis MO   7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2016-02-25   
314-339 2 St Louis MO   093F ONVOY, LLC - MO 520   2015-05-14   
314-339 3 St Louis MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2016-11-10   
314-339 4 St Louis MO   5562 METROPCS, INC. 520   2016-03-01   
314-339 5 St Louis MO   516C AT&T CORP. 520   2014-09-17   
314-339 6 St Louis MO   993E BANDWIDTH.COM CLEC, LLC - MO 520   2014-10-11   
314-339 7 St Louis MO   993E BANDWIDTH.COM CLEC, LLC - MO 520   2014-10-11   
314-339 8 St Louis MO   993E BANDWIDTH.COM CLEC, LLC - MO 520   2014-10-11   
314-339 9 St Louis MO   5562 METROPCS, INC. 520   2014-09-01   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.