Local Calling Guide

Area code/prefix search

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

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
636-900 9   792K CHARTER IP ENABLED SERVICES, LLC 520   2015-12-15   

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

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