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: 722

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
227-722 A Waldorf MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2024-06-26   
227-722 0 Waldorf MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2024-06-27   
227-722 1 Waldorf MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2024-06-27   
227-722 2 Waldorf MD   876D ONVOY, LLC - MD 236   2024-07-12   
227-722 3 Waldorf MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-11-01   
227-722 4 Waldorf MD   876D ONVOY, LLC - MD 236   2024-10-21   
227-722 5 Waldorf MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-12-06   
227-722 6 Waldorf MD   876D ONVOY, LLC - MD 236   2024-07-12   
227-722 7 Waldorf MD   624H ONVOY SPECTRUM, LLC 236   2024-06-26   
227-722 8 Waldorf MD   624H ONVOY SPECTRUM, LLC 236   2024-06-26   
227-722 9 Waldorf MD   876D ONVOY, LLC - MD 236   2024-09-15   

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

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