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: 452

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-452 A Ware MCA5 MO WAREMOWHRS0  9533 SOUTHWESTERN BELL 520      
636-452 0 Ware MCA5 MO   993E BANDWIDTH.COM CLEC, LLC - MO 520   2015-02-28   
636-452 1 Ware MCA5 MO   9533 SOUTHWESTERN BELL 520      
636-452 2 Ware MCA5 MO   093F ONVOY, LLC - MO 520   2016-09-28   
636-452 3 Ware MCA5 MO   9533 SOUTHWESTERN BELL 520      
636-452 4 Ware MCA5 MO   792K CHARTER IP ENABLED SERVICES, LLC 520   2024-03-22   
636-452 5 Ware MCA5 MO   093F ONVOY, LLC - MO 520   2016-09-28   
636-452 6 Ware MCA5 MO   508J CENTURYLINK COMMUNICATIONS, LLC 520   2014-07-24   
636-452 7 Ware MCA5 MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2006-09-11   
636-452 8 Ware MCA5 MO   093F ONVOY, LLC - MO 520   2019-12-02   
636-452 9 Ware MCA5 MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2004-04-16   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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