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.

High Ridge, MO

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
636-253 A STLVMOOH2MD  6529 T-MOBILE USA, INC. 520      
636-253 0   6529 T-MOBILE USA, INC. 520      
636-253 1   6529 T-MOBILE USA, INC. 520   2008-09-12   
636-253 2   6529 T-MOBILE USA, INC. 520   2009-01-20   
636-253 3   993E BANDWIDTH.COM CLEC, LLC - MO 520   2009-01-17   
636-253 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2013-01-12   
636-253 5   7432 MCI WORLDCOM COMMUNICATIONS, INC - MO 520   2010-03-10   
636-253 6   6529 T-MOBILE USA, INC. 520      
636-253 7   993E BANDWIDTH.COM CLEC, LLC - MO 520   2011-09-17   
636-253 8   516C AT&T CORP. 520   2010-03-25   
636-253 9   6529 T-MOBILE USA, INC. 520      
636-375 A HGRGMO57RS2  9533 SOUTHWESTERN BELL 520      
636-375 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2009-09-12   
636-375 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2007-06-10   
636-375 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2007-06-10   
636-375 3   9533 SOUTHWESTERN BELL 520      
636-375 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2007-12-05   
636-375 5   9533 SOUTHWESTERN BELL 520      
636-375 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2007-12-05   
636-375 7   554A SOCKET TELECOM, LLC - MO 520   2007-03-11   
636-375 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2008-07-01   
636-375 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2013-01-12   
636-376 A HGRGMO56RS2  9533 SOUTHWESTERN BELL 520      
636-376 0   9533 SOUTHWESTERN BELL 520      
636-376 1   225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520   2013-05-05   
636-376 2   9533 SOUTHWESTERN BELL 520      
636-376 3   9533 SOUTHWESTERN BELL 520      
636-376 4   9533 SOUTHWESTERN BELL 520      
636-376 5   9533 SOUTHWESTERN BELL 520      
636-376 6   225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520   2013-05-05   
636-376 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2011-02-06   
636-376 8   9533 SOUTHWESTERN BELL 520      
636-376 9   9533 SOUTHWESTERN BELL 520      
636-428 A   7218 TELEPORT COMMUNICATIONS GROUP - ST. LOUIS 520      
636-428 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2015-10-08   
636-428 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2015-10-08   
636-428 2   093F ONVOY, LLC MO 520   2016-09-28   
636-428 3   093F ONVOY, LLC MO 520   2016-09-28   
636-428 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2016-12-19   
636-428 5   093F ONVOY, LLC MO 520   2016-03-28   
636-428 6   7218 TELEPORT COMMUNICATIONS GROUP - ST. LOUIS 520   2015-08-14   
636-428 7   093F ONVOY, LLC MO 520   2016-03-28   
636-428 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2015-10-08   
636-428 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2015-10-08   
636-495 A   4891 WINDSTREAM NUVOX MISSOURI, LLC 520      
636-495 0   173H LOCAL ACCESS LLC - MO 520   2013-12-19   
636-495 1   993E BANDWIDTH.COM CLEC, LLC - MO 520   2014-05-24   
636-495 2   5562 METRO PCS, INC. 520   2014-07-25   
636-495 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2015-06-20   
636-495 4   4891 WINDSTREAM NUVOX MISSOURI, LLC 520   2013-10-10   

1 2 >>

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.