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: 656

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-656 A North East MD BLTMMDCH47Z  420C ARMSTRONG TELECOMMUNICATIONS, INC. - MD 238      
410-656 0 North East MD BLTMMDCH47Z  420C ARMSTRONG TELECOMMUNICATIONS, INC. - MD 238   2008-08-04   
410-656 1 North East MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-06-23   
410-656 2 North East MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-01-09   
410-656 3 North East MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2011-02-01   
410-656 4 North East MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
410-656 5 North East MD   829J PAETEC ITEL, LLC 238   2009-05-08   
410-656 6 North East MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-07   
410-656 7 North East MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2014-01-02   
410-656 8 North East MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2014-03-15   
410-656 9 North East MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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