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OCN: 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
443-412 3 Churchville MD BLTMMDCHCMD  238   2008-09-02   
443-412 9 Churchville MD BLTMMDCHCMD  238      
443-417 A Fallston MD BLTMMDCHCMD  238      
443-417 9 Fallston MD BLTMMDCHCMD  238      
443-424 A Cardiff MD BLTMMDCHCMD  238      
443-424 9 Cardiff MD BLTMMDCHCMD  238      
443-425 A Parkville MD BLTMMDCHCMD  238      
443-425 1 Parkville MD BLTMMDCHCMD  238      
443-434 6 Federalsburg MD SLBRMDSBXUX  242   2012-07-13   
443-437 A Pocomoke MD SLBRMDSBXUX  242      
443-437 6 Pocomoke MD SLBRMDSBXUX  242   2012-05-01   
443-441 A Glenwood MD BLTMMDFMDS0  238      
443-441 9 Glenwood MD BLTMMDFMDS0  238      
443-448 6 Denton MD SLBRMDSBXUX  242   2014-06-25   
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 BLTMMDCHCMD  238      
443-502 9 Havre de Grace MD BLTMMDCHCMD  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 BLTMMDCHCMD  238      
443-674 9 North East MD BLTMMDCHCMD  238      
443-679 A Severn MD BLTMMDFMDS0  238      
443-679 9 Severn MD BLTMMDFMDS0  238      
443-693 A Perryville MD BLTMMDCHCMD  238      
443-693 9 Perryville MD BLTMMDCHCMD  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 BLTMMDCHCMD  238      
443-731 9 Port Deposit MD BLTMMDCHCMD  238      
443-732 A Silver Run MD BLTMMDFMDS0  238      
443-732 9 Silver Run MD BLTMMDFMDS0  238      
443-733 A Waterloo MD CLMAMDNIDS1  238      

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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