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]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-999 0 Pacific MO STLSMOGZEMD  145J TERRA NOVA TELECOM INC. 520   2024-07-17   
636-999 1 Pacific MO   145J TERRA NOVA TELECOM INC. 520   2025-02-14   
636-999 2 Pacific MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2015-09-18   
636-999 3 Pacific MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2015-09-18   
636-999 4 Pacific MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2015-09-18   
636-999 5 Pacific MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2015-09-18   
636-999 6 Pacific MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2015-09-18   
636-999 7 Pacific MO WNVLMOXAXBX  508J CENTURYLINK COMMUNICATIONS, LLC 520   2015-05-26   
636-999 8 Pacific MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2015-05-21   
636-999 9 Pacific MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2015-05-21   

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

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