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]

Block: A

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
227-200 A Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-10-07   
227-201 A Myersville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2023-10-07   
227-202 A Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-10-07   
227-203 A Frederick MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2023-10-06   
227-368 A Mechanicsville MD   530H WIDE VOICE, LLC - MD 236   2023-10-21   
227-777 A Ashton (Baltimore LATA) MD   530H WIDE VOICE, LLC - MD 238   2023-09-30   

Last updated: Sat, 26 Aug 2023 16:14:14 UTC

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