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: 302

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-302 A Chesterfield MO   093F ONVOY, LLC - MO 520   2026-11-01   
636-302 0 Chesterfield MO   093F ONVOY, LLC - MO 520   2026-11-01   

Last updated: Tue, 29 Sep 2026 03:00:13 UTC

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