Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 410 [Rate centres in NPA 410] [Dial plan for NPA 410]

NXX: 670

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-670 A Edgewood MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-670 0 Edgewood MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-05-06   
410-670 1 Edgewood MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2020-01-24   
410-670 2 Edgewood MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-03-29   
410-670 3 Edgewood MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2012-06-08   
410-670 4 Edgewood MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2003-02-20   
410-670 5 Edgewood MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-08-12   
410-670 6 Edgewood MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2020-04-13   
410-670 7 Edgewood MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-02-07   
410-670 8 Edgewood MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-05-08   
410-670 9 Edgewood MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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