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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 CRDFMDCDRS0  9212 VERIZON MARYLAND, INC. 238      
410-399 1 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-11   
410-399 2 DRTNMDDRRS0  9212 VERIZON MARYLAND, INC. 238      
410-399 3   829J PAETEC ITEL, LLC 238   2003-03-11   
410-399 4 CCVLMDCHRS0  9212 VERIZON MARYLAND, INC. 238      
410-399 5 BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-05   
410-399 6 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-399 7 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-399 8 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-11   
410-399 9 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-420 A BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-420 0 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-420 1 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-420 2 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-420 3 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-420 4 BLTMMDCH08Z  4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2004-02-14   
410-420 5 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2020-05-29   
410-420 6 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-420 7 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-420 8 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-420 9 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-588 A BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-588 0 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-588 1 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-588 2 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-588 3 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-588 4 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-588 5 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-588 6 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-06-10   
410-588 7 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-06-10   
410-588 8 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-588 9 BLTMMDCH40Z  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 BLTMMD91DS2  2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238   2003-12-25   
410-776 1 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-08-26   
410-776 2 BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-776 3 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
410-776 4 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-08-26   
410-776 5 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-08-26   
410-776 6 BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-776 7   829J PAETEC ITEL, LLC 238   2005-04-04   
410-776 8 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-11   
410-776 9 BLTMMDCH40Z  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 BLTOMDKHDS0  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 BLARMDBLDS0  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 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2024-11-22   
443-307 1 CLMAMDORGT0  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 CLMAMDORGT0  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 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-12-09   
443-307 6 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-10-03   
443-307 7 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-10-03   
443-307 8 BLTMMDSN6MD  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 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-02   
443-356 1 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-356 2 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-356 3 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-07-07   
443-356 4 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-356 5 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-23   
443-356 6 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-06-26   
443-356 7 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-10-25   
443-356 8 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-11   
443-356 9 BLTMMDCH40Z  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 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-03-26   
443-371 1 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-02-06   
443-371 2 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2013-09-30   
443-371 3 BLTMMDCH45Z  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 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-09-20   
443-371 7 BLTMMDCHXFX  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 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-02-01   
443-528 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-528 0 BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-528 1 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-528 2 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-528 3 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-528 4 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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