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: 310

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-310 A Hillsboro MO   792K CHARTER IP ENABLED SERVICES, LLC 520      
636-310 0 Hillsboro MO   093F ONVOY, LLC - MO 520   2016-09-28   
636-310 1 Hillsboro MO   792K CHARTER IP ENABLED SERVICES, LLC 520   2016-05-27   
636-310 2 Hillsboro MO   093F ONVOY, LLC - MO 520   2016-09-28   
636-310 3 Hillsboro MO   093F ONVOY, LLC - MO 520   2021-03-07   
636-310 8 Hillsboro MO   490J DISH WIRELESS, LLC 520   2022-02-17   
636-310 9 Hillsboro MO   624H ONVOY SPECTRUM, LLC 520   2024-03-23   

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

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