Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
443-546 8 Columbia MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-10-10   
443-547 1 Westminster MD 5562 METROPCS, INC. 238   2009-09-09   
443-547 9 Westminster MD 5562 METROPCS, INC. 238   2010-07-19   
443-552 6 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-04-20   
443-552 8 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-04-20   
443-552 9 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-09-22   
443-554 A Chase MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-554 0 Chase MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-554 1 Chase MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-12-13   
443-554 2 Chase MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-12-13   
443-554 3 Chase MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-10-09   
443-554 4 Chase MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-12-24   
443-554 5 Chase MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-12-24   
443-554 6 Chase MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-554 7 Chase MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-07-14   
443-554 8 Chase MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-11-17   
443-554 9 Chase MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-557 8 Glen Burnie MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-06-16   
443-558 6 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2010-12-02   
443-558 8 Aberdeen MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2010-12-02   
443-559 1 Essex MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-02-04   
443-559 2 Essex MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-03-02   
443-559 7 Essex MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-06-16   
443-560 A Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2024-02-09   
443-560 1 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-01   
443-560 2 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-01   
443-560 3 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-01   
443-560 4 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-01   
443-560 5 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-01   
443-560 6 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-01   
443-560 7 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-01   
443-560 8 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-01   
443-560 9 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-01   
443-561 5 Elkridge MD 5562 METROPCS, INC. 238   2011-03-15   
443-561 6 Elkridge MD 5562 METROPCS, INC. 238   2011-03-15   
443-561 7 Elkridge MD 5562 METROPCS, INC. 238   2011-03-15   
443-561 8 Elkridge MD 5562 METROPCS, INC. 238   2011-03-15   
443-563 A Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-563 0 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-07-07   
443-563 4 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-02-14   
443-563 6 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-02-14   
443-563 7 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-02-14   
443-563 8 Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-02-14   
443-565 2 Randallstown MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-10-09   
443-570 A Baltimore MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-572 1 Glen Burnie MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-01-15   
443-572 2 Glen Burnie MD 5562 METROPCS, INC. 238   2016-10-01   
443-572 6 Glen Burnie MD 5562 METROPCS, INC. 238   2005-07-02   
443-572 9 Glen Burnie MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-08-17   
443-577 8 Glen Burnie MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-07-14   

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Last updated: Sat, 02 May 2026 12:20:53 UTC

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