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: 497

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-497 A Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
410-497 0 Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
410-497 1 Parkville MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2007-04-20   
410-497 2 Parkville MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-08-18   
410-497 3 Parkville MD   829J PAETEC ITEL, LLC 238   2006-04-01   
410-497 4 Parkville MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2009-02-12   
410-497 5 Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-08-08   
410-497 6 Parkville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-04-18   
410-497 7 Parkville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
410-497 8 Parkville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-28   
410-497 9 Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2012-12-07   

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

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