Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Fenton, MO

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
636-764 6 STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2006-01-14   
636-764 8 STLSMOWQDS2  093F ONVOY, LLC - MO 520   2023-08-12   
636-764 9 STLSMOWQDS2  093F ONVOY, LLC - MO 520   2023-08-12   

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Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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