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: 923

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-923 A Valley Park MO STLSMOGZWMD  829J PAETEC ITEL, LLC 520      
636-923 0 Valley Park MO STLSMOGZWMD  829J PAETEC ITEL, LLC 520      
636-923 1 Valley Park MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2018-10-09   
636-923 2 Valley Park MO STLSMOGZWMD  829J PAETEC ITEL, LLC 520      
636-923 3 Valley Park MO STLSMOGZWMD  829J PAETEC ITEL, LLC 520      
636-923 4 Valley Park MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2005-10-24   
636-923 5 Valley Park MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2018-10-09   
636-923 6 Valley Park MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2018-10-09   
636-923 7 Valley Park MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2018-10-09   
636-923 8 Valley Park MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2004-12-18   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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