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: 668

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-668 A Winfield MO WNFDMOXARS0  9787 CENTURYTEL MISSOURI LLC (SOUTHWEST)DBA CENTURYLINK 520      
636-668 0 Winfield MO STLSMOWQ8MD  073H TELNYX LLC 520   2022-09-16   
636-668 2 Winfield MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2021-10-03   
636-668 3 Winfield MO STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2021-11-18   
636-668 4 Winfield MO STLSMO05XPX  506J TWILIO INTERNATIONAL, INC. 520   2021-06-04   
636-668 5 Winfield MO STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2021-11-18   
636-668 6 Winfield MO WNFDMOXARS0  9787 CENTURYTEL MISSOURI LLC (SOUTHWEST)DBA CENTURYLINK 520      
636-668 8 Winfield MO WNFDMOXARS0  9787 CENTURYTEL MISSOURI LLC (SOUTHWEST)DBA CENTURYLINK 520      
636-668 9 Winfield MO STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2021-11-16   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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