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: 642

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-642 A Imperial MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
636-642 0 Imperial MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2005-02-10   
636-642 1 Imperial MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2005-02-04   
636-642 2 Imperial MO   506J TWILIO INTERNATIONAL INC 520   2021-06-04   
636-642 4 Imperial MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
636-642 6 Imperial MO   566J RADIANTIQ LLC 520   2021-04-16   

Last updated: Wed, 12 Jan 2022 16:20:07 UTC

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