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: 757

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-757 A St Charles MO STLSMOGZWMD  829J PAETEC ITEL, LLC 520      
636-757 0 St Charles MO   829J PAETEC ITEL, LLC 520      
636-757 1 St Charles MO   829J PAETEC ITEL, LLC 520      
636-757 2 St Charles MO   829J PAETEC ITEL, LLC 520      
636-757 3 St Charles MO   792K CHARTER IP ENABLED SERVICES, LLC 520   2012-09-24   
636-757 4 St Charles MO   093F ONVOY, LLC - MO 520   2023-08-10   
636-757 5 St Charles MO   792K CHARTER IP ENABLED SERVICES, LLC 520   2016-03-23   
636-757 6 St Charles MO   829J PAETEC ITEL, LLC 520   2009-02-05   
636-757 7 St Charles MO   829J PAETEC ITEL, LLC 520      
636-757 8 St Charles MO   829J PAETEC ITEL, LLC 520   2010-04-19   
636-757 9 St Charles MO   829J PAETEC ITEL, LLC 520      

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

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