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: 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD

<< 1 2 3 4 5 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
443-457 A Brooklyn Park-Linthicum MD BLTMMDFMDS0  238      
443-457 5 Brooklyn Park-Linthicum MD BLTMMDFMDS0  238      
443-489 A Chase MD BLTMMDFMDS0  238      
443-489 9 Chase MD BLTMMDFMDS0  238      
443-502 A Havre de Grace MD BLTMMDFMDS0  238      
443-502 9 Havre de Grace MD BLTMMDFMDS0  238      
443-507 A Hampstead MD BLTMMDFMDS0  238      
443-507 9 Hampstead MD BLTMMDFMDS0  238      
443-515 6 Cambridge MD SLBRMDSBXUX  242   2012-07-13   
443-533 A Jarrettsville MD BLTMMDFMDS0  238      
443-533 9 Jarrettsville MD BLTMMDFMDS0  238      
443-566 7 Chesapeake City MD SLBRMDSBXUX  242   2014-10-23   
443-620 A Waterloo MD CLMAMDNIDS1  238      
443-620 9 Waterloo MD CLMAMDNIDS1  238      
443-648 A Essex MD BLTMMDFMDS0  238      
443-648 4 Essex MD BLTMMDFMDS0  238      
443-662 4 Sparks-Glencoe MD CLMAMDNIDS1  238   2004-07-24   
443-666 6 Chestertown MD SLBRMDSBXUX  242   2014-10-20   
443-671 A New Windsor MD BLTMMDFMDS0  238      
443-671 9 New Windsor MD BLTMMDFMDS0  238      
443-672 A Parkton MD BLTMMDFMDS0  238      
443-672 9 Parkton MD BLTMMDFMDS0  238      
443-674 A North East MD BLTMMDFMDS0  238      
443-674 9 North East MD BLTMMDFMDS0  238      
443-679 A Severn MD BLTMMDFMDS0  238      
443-679 9 Severn MD BLTMMDFMDS0  238      
443-693 A Perryville MD BLTMMDFMDS0  238      
443-693 9 Perryville MD BLTMMDFMDS0  238      
443-698 A Odenton MD BLTMMDFMDS0  238      
443-698 9 Odenton MD BLTMMDFMDS0  238      
443-706 7 Crisfield MD SLBRMDSBXUX  242   2016-10-10   
443-731 A Port Deposit MD BLTMMDFMDS0  238      
443-731 9 Port Deposit MD BLTMMDFMDS0  238      
443-732 A Silver Run MD BLTMMDFMDS0  238      
443-732 9 Silver Run MD BLTMMDFMDS0  238      
443-764 2 Glen Burnie MD CLMAMDNIDS1  238   2010-07-15   
443-784 A Armiger-Gibson Island MD BLTMMDFMDS0  238      
443-784 4 Armiger-Gibson Island MD BLTMMDFMDS0  238   2004-11-15   
443-888 7 Princess Anne MD SLBRMDSBXUX  242   2016-04-08   
443-914 A Worthington MD BLTMMDFMDS0  238      
443-914 9 Worthington MD BLTMMDFMDS0  238      
443-918 A Taneytown MD BLTMMDFMDS0  238      
443-918 9 Taneytown MD BLTMMDFMDS0  238      
443-920 A Sykesville MD CLMAMDNIDS1  238      
443-920 9 Sykesville MD CLMAMDNIDS1  238      
443-933 A Cockeysville MD CLMAMDNIDS1  238      
443-933 4 Cockeysville MD CLMAMDNIDS1  238   2004-06-11   
443-937 A Union Bridge MD BLTMMDFMDS0  238      
443-937 9 Union Bridge MD BLTMMDFMDS0  238      
443-942 A Severna Park MD CLMAMDNIDS1  238      

<< 1 2 3 4 5 >>

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.