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: 205

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-205 A Winfield MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
636-205 0 Winfield MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2006-01-27   
636-205 1 Winfield MO   093F ONVOY, LLC - MO 520   2019-05-20   
636-205 2 Winfield MO   093F ONVOY, LLC - MO 520   2018-12-07   
636-205 3 Winfield MO   073H TELNYX LLC 520   2020-08-08   
636-205 4 Winfield MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
636-205 5 Winfield MO   093F ONVOY, LLC - MO 520   2019-11-25   
636-205 6 Winfield MO   093F ONVOY, LLC - MO 520   2019-11-25   
636-205 8 Winfield MO   093F ONVOY, LLC - MO 520   2019-05-20   
636-205 9 Winfield MO   093F ONVOY, LLC - MO 520   2021-03-06   

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

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