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: 406

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-406 A Cedar Hill MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2024-05-21   
636-406 0 Cedar Hill MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2024-05-21   
636-406 1 Cedar Hill MO STLTMOBOAMD  5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2024-09-19   
636-406 2 Cedar Hill MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2025-03-12   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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