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: 601

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
314-601 A St Louis MO STLSMO01DSA  9533 SOUTHWESTERN BELL 520      
314-601 0 St Louis MO STLSMO01DSA  9533 SOUTHWESTERN BELL 520      
314-601 1 St Louis MO STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2005-02-21   
314-601 2 St Louis MO STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2006-02-16   
314-601 3 St Louis MO OLVEMOAXCA0  5607 CHARTER FIBERLINK - MISSOURI, LLC - MO 520   2002-08-27   
314-601 4 St Louis MO STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2005-06-20   
314-601 5 St Louis MO STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2005-02-21   
314-601 6 St Louis MO STLSMO01DSA  9533 SOUTHWESTERN BELL 520      
314-601 7 St Louis MO STLSMO01DSA  9533 SOUTHWESTERN BELL 520      
314-601 8 St Louis MO STLSMO01DSA  9533 SOUTHWESTERN BELL 520      
314-601 9 St Louis MO STLSMO01DSA  9533 SOUTHWESTERN BELL 520      

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.