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: 630

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-630 A O'Fallon MO STLSMOWQ4MD  939H COMMIO, LLC 520      
636-630 0 O'Fallon MO STLSMOWQ4MD  939H COMMIO, LLC 520   2022-07-21   
636-630 1 O'Fallon MO WNVLMOXAXXX  093F ONVOY, LLC - MO 520   2024-02-25   
636-630 7 O'Fallon MO WNVLMOXAXXX  093F ONVOY, LLC - MO 520   2024-02-25   
636-630 8 O'Fallon MO WNVLMOXAXXX  093F ONVOY, LLC - MO 520   2024-02-25   
636-630 9 O'Fallon MO WNVLMOXAXXX  093F ONVOY, LLC - MO 520   2024-02-25   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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