Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 227 [Rate centres in NPA 227] [Dial plan for NPA 227]

NXX: 727

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
227-727 A Washington Zone 6 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2025-01-02   
227-727 0 Washington Zone 6 MD   876D ONVOY, LLC - MD 236   2025-02-01   
227-727 5 Washington Zone 6 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2025-01-02   
227-727 6 Washington Zone 6 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2025-01-02   
227-727 7 Washington Zone 6 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2025-01-02   
227-727 8 Washington Zone 6 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2025-01-02   
227-727 9 Washington Zone 6 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2025-01-02   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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