Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Birch Tree, MO

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
573-997 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2024-10-18   
573-997 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2024-10-18   
573-997 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2024-10-18   
573-997 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2024-10-18   
573-997 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2024-09-19   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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