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: 6119 LEVEL 3 COMMUNICATIONS, LLC - MD

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
443-552 3 Baltimore MD BLTMMDSN6MD  238   2005-05-16   
443-552 4 Baltimore MD BLTMMDSN6MD  238   2005-05-16   
443-552 5 Baltimore MD BLTMMDSN6MD  238   2005-05-16   
443-552 7 Baltimore MD BLTMMDSN6MD  238   2005-05-16   
443-563 1 Baltimore MD BLTMMDSN6MD  238   2007-09-25   
443-564 A Towson MD BLTMMDSN6MD  238      
443-564 4 Towson MD BLTMMDSN6MD  238      
443-566 4 Chesapeake City MD SLBRMDSBXFX  242   2014-02-13   
443-567 A Bel Air MD BLTMMDSN6MD  238      
443-567 4 Bel Air MD BLTMMDSN6MD  238      
443-569 A Annapolis MD BLTMMDSN6MD  238      
443-569 0 Annapolis MD BLTMMDSN6MD  238   2004-12-13   
443-569 3 Annapolis MD BLTMMDSN6MD  238   2005-05-06   
443-569 4 Annapolis MD BLTMMDSN6MD  238      
443-569 5 Annapolis MD BLTMMDSN6MD  238   2005-05-06   
443-569 6 Annapolis MD BLTMMDSN6MD  238   2005-05-06   
443-569 7 Annapolis MD BLTMMDSN6MD  238   2005-05-06   
443-569 8 Annapolis MD BLTMMDSN6MD  238   2005-05-06   
443-577 4 Glen Burnie MD BLTMMDSN6MD  238   2003-02-20   
443-590 3 Reisterstown MD BLTMMDSN6MD  238   2006-01-02   
443-594 5 Sparrows Point MD BLTMMDSN6MD  238      
443-602 8 Baltimore MD BLTMMDSN6MD  238   2007-09-11   
443-602 9 Baltimore MD BLTMMDSN6MD  238   2007-12-04   
443-616 2 Bel Air MD BLTMMDSN6MD  238   2008-02-11   
443-620 6 Waterloo MD BLTMMDSN6MD  238   2012-12-01   
443-625 A Fork MD BLTMMDSN6MD  238      
443-625 1 Fork MD BLTMMDSN6MD  238   2001-10-17   
443-627 A Baltimore MD BLTMMDSN6MD  238      
443-627 4 Baltimore MD BLTMMDSN6MD  238   2006-11-28   
443-627 5 Baltimore MD BLTMMDSN6MD  238   2006-11-28   
443-627 6 Baltimore MD BLTMMDSN6MD  238   2006-11-28   
443-627 7 Baltimore MD BLTMMDSN6MD  238   2007-02-07   
443-637 1 Armiger-Gibson Island MD BLTMMDSN6MD  238   2005-01-10   
443-637 4 Armiger-Gibson Island MD BLTMMDSN6MD  238   2003-02-20   
443-641 A Pikesville MD BLTMMDSN6MD  238      
443-641 1 Pikesville MD BLTMMDSN6MD  238      
443-641 9 Pikesville MD BLTMMDSN6MD  238      
443-652 6 Towson MD BLTMMDSN6MD  238   2016-07-22   
443-666 A Chestertown MD SLBRMDSBXFX  242      
443-666 3 Chestertown MD SLBRMDSBXFX  242   2012-08-02   
443-671 1 New Windsor MD BLTMMDSN6MD  238   2006-03-05   
443-672 2 Parkton MD BLTMMDSN6MD  238   2006-02-25   
443-674 0 North East MD BLTMMDSN6MD  238   2006-05-26   
443-679 5 Severn MD BLTMMDSN6MD  238   2008-06-18   
443-681 6 Baltimore MD BLTMMDSN6MD  238   2010-04-04   
443-681 7 Baltimore MD BLTMMDSN6MD  238   2010-04-04   
443-692 8 Baltimore MD BLTMMDSN6MD  238   2010-08-23   
443-693 0 Perryville MD BLTMMDSN6MD  238   2008-11-19   
443-693 5 Perryville MD BLTMMDSN6MD  238   2006-03-05   
443-701 3 Arbutus MD BLTMMDSN6MD  238   2005-01-08   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 >>

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.