Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 557 [Rate centres in NPA 557] [Dial plan for NPA 557]

NXX: 567

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
557-567 A Kirkwood MO   624H ONVOY SPECTRUM, LLC 520   2025-01-02   
557-567 5 Kirkwood MO   624H ONVOY SPECTRUM, LLC 520      
557-567 6 Kirkwood MO   624H ONVOY SPECTRUM, LLC 520      
557-567 7 Kirkwood MO   624H ONVOY SPECTRUM, LLC 520      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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