Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 636 [Rate centres in NPA 636] [Dial plan for NPA 636]

NXX: 259

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-259 A Gray Summit MO STLVMOOH6MD  6529 T-MOBILE USA, INC. 520      
636-259 0 Gray Summit MO   6529 T-MOBILE USA, INC. 520      
636-259 1 Gray Summit MO   515J IP HORIZON LLC 520   2013-12-19   
636-259 2 Gray Summit MO   993E BANDWIDTH.COM CLEC, LLC - MO 520   2014-05-24   
636-259 3 Gray Summit MO   993E BANDWIDTH.COM CLEC, LLC - MO 520   2015-06-05   
636-259 4 Gray Summit MO   093F ONVOY, LLC - MO 520   2016-09-28   
636-259 5 Gray Summit MO   093F ONVOY, LLC - MO 520   2016-09-28   
636-259 6 Gray Summit MO   6529 T-MOBILE USA, INC. 520      
636-259 7 Gray Summit MO   508J CENTURYLINK COMMUNICATIONS, LLC 520   2014-07-22   
636-259 8 Gray Summit MO   6529 T-MOBILE USA, INC. 520   2014-08-10   
636-259 9 Gray Summit MO   6529 T-MOBILE USA, INC. 520      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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