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Bel Air, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-322 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-399 A CRDFMDCDRS0  9212 VERIZON MARYLAND, INC. 238      
410-399 0   9212 VERIZON MARYLAND, INC. 238      
410-399 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-11   
410-399 2   9212 VERIZON MARYLAND, INC. 238      
410-399 3   829J PAETEC ITEL, LLC 238   2003-03-11   
410-399 4   9212 VERIZON MARYLAND, INC. 238      
410-399 5   8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-05   
410-399 6   9212 VERIZON MARYLAND, INC. 238      
410-399 7   9212 VERIZON MARYLAND, INC. 238      
410-399 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-11   
410-399 9   9212 VERIZON MARYLAND, INC. 238      
410-420 A BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-420 0   9212 VERIZON MARYLAND, INC. 238      
410-420 1   9212 VERIZON MARYLAND, INC. 238      
410-420 2   9212 VERIZON MARYLAND, INC. 238      
410-420 3   9212 VERIZON MARYLAND, INC. 238      
410-420 4   4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2004-02-14   
410-420 5   318J COMCAST IP PHONE, LLC 238   2020-05-29   
410-420 6   9212 VERIZON MARYLAND, INC. 238      
410-420 7   9212 VERIZON MARYLAND, INC. 238      
410-420 8   9212 VERIZON MARYLAND, INC. 238      
410-420 9   9212 VERIZON MARYLAND, INC. 238      
410-588 A BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-588 0   9212 VERIZON MARYLAND, INC. 238      
410-588 1   9212 VERIZON MARYLAND, INC. 238      
410-588 2   9212 VERIZON MARYLAND, INC. 238      
410-588 3   9212 VERIZON MARYLAND, INC. 238      
410-588 4   9212 VERIZON MARYLAND, INC. 238      
410-588 5   9212 VERIZON MARYLAND, INC. 238      
410-588 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-06-10   
410-588 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-06-10   
410-588 8   9212 VERIZON MARYLAND, INC. 238      
410-588 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-09-19   
410-638 A BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-652 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-776 A BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-776 0   2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238   2003-12-25   
410-776 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-08-26   
410-776 2   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-776 3   318J COMCAST IP PHONE, LLC 238   2005-03-10   
410-776 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-08-26   
410-776 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-08-26   
410-776 6   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-776 7   829J PAETEC ITEL, LLC 238   2005-04-04   
410-776 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-11   
410-776 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-11   
410-809 A   829J PAETEC ITEL, LLC 238   2025-04-01   
410-809 0   829J PAETEC ITEL, LLC 238      
410-809 1   829J PAETEC ITEL, LLC 238      
410-809 2   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2005-05-05   
410-809 3   829J PAETEC ITEL, LLC 238      
410-809 4   829J PAETEC ITEL, LLC 238      
410-809 5   829J PAETEC ITEL, LLC 238      
410-809 6   9212 VERIZON MARYLAND, INC. 238   2005-06-06   
410-809 7   829J PAETEC ITEL, LLC 238      
410-809 8   829J PAETEC ITEL, LLC 238      
410-809 9   829J PAETEC ITEL, LLC 238      
410-836 A BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-838 A BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
443-307 A   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-307 0   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2024-11-22   
443-307 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-01-31   
443-307 2   145J TERRA NOVA TELECOM INC. 238   2025-04-29   
443-307 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-01-31   
443-307 4   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-11-06   
443-307 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-12-09   
443-307 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-10-03   
443-307 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-10-03   
443-307 8   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-307 9   145J TERRA NOVA TELECOM INC. 238   2022-11-07   
443-356 A BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-356 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-02   
443-356 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-356 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-356 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-07-07   
443-356 4   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-356 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-23   
443-356 6   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-06-26   
443-356 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-10-25   
443-356 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-11   
443-356 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-11   
443-369 A BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
443-371 A BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-371 0   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-03-26   
443-371 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-02-06   
443-371 2   318J COMCAST IP PHONE, LLC 238   2013-09-30   
443-371 3   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-11-28   
443-371 4   829J PAETEC ITEL, LLC 238   2006-04-08   
443-371 5   145J TERRA NOVA TELECOM INC. 238   2023-08-06   
443-371 6   318J COMCAST IP PHONE, LLC 238   2007-09-20   
443-371 7   318J COMCAST IP PHONE, LLC 238   2007-09-20   
443-371 8   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-04-08   
443-371 9   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-02-01   
443-528 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-528 0   5562 METROPCS, INC. 238      
443-528 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-528 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-528 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-528 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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