Local Calling Guide

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Marthasville, MO

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
636-433 A MTVLMOXARS0  9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-433 0   073H TELNYX LLC 520   2020-08-01   
636-433 2   9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-433 3   093F ONVOY, LLC - MO 520   2020-11-13   
636-433 4   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2005-08-21   
636-433 5   9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-433 6   093F ONVOY, LLC - MO 520   2020-11-13   
636-433 8   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2011-04-14   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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