Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD

<< 1 2 3 4 5 6 7 8 9 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
410-650 2 Dundalk MD BLTOMDKHDS0  238      
410-656 3 North East MD BLTOMDKHDS0  238   2011-02-01   
410-657 A Parkville MD BLTOMDKHDS0  238      
410-657 1 Parkville MD BLTOMDKHDS0  238   2018-05-10   
410-657 3 Parkville MD BLTOMDKHDS0  238      
410-657 9 Parkville MD BLTOMDKHDS0  238      
410-670 A Edgewood MD BLTOMDKHDS0  238      
410-670 9 Edgewood MD BLTOMDKHDS0  238      
410-696 A Ellicott City MD BLTOMDKHDS0  238      
410-696 1 Ellicott City MD BLTOMDKHDS0  238      
410-696 3 Ellicott City MD BLTOMDKHDS0  238   2005-07-03   
410-696 9 Ellicott City MD BLTOMDKHDS0  238      
410-697 A Millersville MD BLTOMDKHDS0  238      
410-697 9 Millersville MD BLTOMDKHDS0  238      
410-698 A Fork MD BLTOMDKHDS0  238      
410-698 9 Fork MD BLTOMDKHDS0  238      
410-701 A Randallstown MD BLTOMDKHDS0  238      
410-701 9 Randallstown MD BLTOMDKHDS0  238      
410-702 A Reisterstown MD BLTOMDKHDS0  238      
410-702 9 Reisterstown MD BLTOMDKHDS0  238      
410-704 A Towson MD BLTOMDKHDS0  238      
410-709 A Sparrows Point MD BLTOMDKHDS0  238      
410-709 9 Sparrows Point MD BLTOMDKHDS0  238      
410-753 A Pikesville MD BLTOMDKHDS0  238      
410-753 0 Pikesville MD BLTOMDKHDS0  238      
410-753 1 Pikesville MD BLTOMDKHDS0  238      
410-753 6 Pikesville MD BLTOMDKHDS0  238   2011-09-07   
410-753 9 Pikesville MD BLTOMDKHDS0  238      
410-754 4 Federalsburg MD ESTNMDES5MD  242   2009-03-02   
410-774 A Crofton MD BLTOMDKHDS0  238      
410-774 9 Crofton MD BLTOMDKHDS0  238      
410-777 A Severna Park MD BLTOMDKHDS0  238      
410-777 1 Severna Park MD BLTOMDKHDS0  238      
410-777 2 Severna Park MD BLTOMDKHDS0  238      
410-777 4 Severna Park MD BLTOMDKHDS0  238      
410-777 7 Severna Park MD BLTOMDKHDS0  238      
410-777 9 Severna Park MD BLTOMDKHDS0  238      
410-786 A Woodlawn MD BLTOMDKHDS0  238      
410-801 A Baltimore MD BLTOMDKHDS0  238      
410-801 2 Baltimore MD BLTOMDKHDS0  238   2017-04-06   
410-801 3 Baltimore MD BLTOMDKHDS0  238   2017-04-06   
410-801 4 Baltimore MD BLTOMDKHDS0  238   2017-04-06   
410-801 5 Baltimore MD BLTOMDKHDS0  238   2019-07-09   
410-809 2 Bel Air MD BLTOMDKHDS0  238   2005-05-05   
410-842 A Towson MD BLTOMDKHDS0  238      
410-842 0 Towson MD BLTOMDKHDS0  238      
410-842 1 Towson MD BLTOMDKHDS0  238      
410-842 2 Towson MD BLTOMDKHDS0  238      
410-842 4 Towson MD BLTOMDKHDS0  238      
410-842 6 Towson MD BLTOMDKHDS0  238      

<< 1 2 3 4 5 6 7 8 9 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.