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.

Ladue, MO

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
314-562 9   490J BOOST SUBSCRIBERCO L.L.C. 520   2026-07-13   
314-563 A   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
314-563 0 STLTMOBOAMD  5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2025-09-15   
314-563 1 NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2011-06-12   
314-563 2 STLTMOBOAMD  5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2025-09-15   
314-563 3   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
314-563 4   490J BOOST SUBSCRIBERCO L.L.C. 520   2025-08-04   
314-563 5 CRVCMOGMDS0  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2010-07-16   
314-563 6 CRVCMOGMDS0  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2010-07-16   
314-563 7 CRVCMOGMDS0  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2010-07-16   
314-563 8 CRVCMOGMDS0  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2010-07-16   
314-563 9 STLTMOBOAMD  5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2025-09-15   
314-564 A STLVMOOH6MD  6529 T-MOBILE USA, INC. 520      
314-564 0 STLSMOWQGMD  732J NUSO, LLC 520   2024-06-23   
314-564 1 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2011-01-28   
314-564 2 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2011-01-28   
314-564 3 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2011-01-28   
314-564 4 STLTMOBOAMD  5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2024-11-21   
314-564 5 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2011-01-28   
314-564 6 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2011-01-28   
314-564 7 STLTMOBOAMD  5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2012-03-19   
314-564 8 STLSMOWQDS2  093F ONVOY, LLC - MO 520   2005-04-24   
314-564 9 STLTMOBOAMD  5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2024-11-21   
314-566 A NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
314-567 A STLSMO21DS3  9533 SOUTHWESTERN BELL 520      
314-569 A STLSMO21DS3  9533 SOUTHWESTERN BELL 520      
314-580 A STLTMOBOAMD  5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520      
314-585 A STLVMOOH6MD  6529 T-MOBILE USA, INC. 520      
314-585 0 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2014-04-07   
314-585 1 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2014-04-07   
314-585 2 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2013-07-06   
314-585 3 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2013-07-06   
314-585 4 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2013-07-06   
314-585 5 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2013-07-06   
314-585 6 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2013-07-06   
314-585 7 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2013-07-06   
314-585 8 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2013-07-06   
314-585 9 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2013-06-16   
314-587 A STLSMO21DS3  9533 SOUTHWESTERN BELL 520      
314-587 0 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2010-11-23   
314-587 1 STLSMO21DS3  9533 SOUTHWESTERN BELL 520      
314-587 2 STLSMO21DS3  9533 SOUTHWESTERN BELL 520      
314-587 3 STLSMO21DS3  9533 SOUTHWESTERN BELL 520      
314-587 4 STLSMO20DSA  9533 SOUTHWESTERN BELL 520      
314-587 5 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2010-11-23   
314-587 6 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2010-11-23   
314-587 7 STLSMO21DS3  9533 SOUTHWESTERN BELL 520      
314-587 8 STLSMO21DS3  9533 SOUTHWESTERN BELL 520      
314-587 9 STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2010-11-23   
314-591 A STLTMOBOAMD  5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 >>

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.