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: 870

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-870 A Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
410-870 0 Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-04-16   
410-870 1 Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-06-19   
410-870 2 Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-06-19   
410-870 3 Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2009-03-27   
410-870 4 Parkville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-09-18   
410-870 5 Parkville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-10-14   
410-870 6 Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2009-03-27   
410-870 7 Parkville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-04-29   
410-870 8 Parkville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-06-11   
410-870 9 Parkville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-10-12   

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

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