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: 272

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
227-272 A Oakland MD   876D ONVOY, LLC - MD 240   2025-03-30   
227-272 0 Oakland MD   876D ONVOY, LLC - MD 240   2025-03-30   
227-272 2 Oakland MD   145J TERRA NOVA TELECOM INC. 240   2025-04-09   

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

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