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Brooklyn Park-Linthicum, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
443-335 8 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-03-04   
443-335 9 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-03-04   
443-400 A BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-400 0 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-400 1 BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-10-11   
443-400 2 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-400 3 BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-06-14   
443-400 4 BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-10-11   
443-400 5 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-400 6 BLTMMDCH40Z  5562 METROPCS, INC. 238   2014-03-27   
443-400 7 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-09-13   
443-400 8   829J PAETEC ITEL, LLC 238   2002-05-19   
443-400 9 BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-10-04   
443-457 A BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-457 0 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-25   
443-457 1   829J PAETEC ITEL, LLC 238   2003-03-26   
443-457 2 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-24   
443-457 3 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-06-05   
443-457 4 BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-05   
443-457 5 BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-457 6 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-02-27   
443-457 7   829J PAETEC ITEL, LLC 238   2004-09-05   
443-457 8 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-01-09   
443-457 9 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-24   
443-673 A   829J PAETEC ITEL, LLC 238   2025-04-01   
443-673 0   829J PAETEC ITEL, LLC 238      
443-673 1 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-05-22   
443-673 2 BLTMMDCH40Z  5562 METROPCS, INC. 238   2014-02-28   
443-673 3   829J PAETEC ITEL, LLC 238      
443-673 4 BLTMMDCH40Z  5562 METROPCS, INC. 238   2014-02-25   
443-673 5 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-09-23   
443-673 6   829J PAETEC ITEL, LLC 238      
443-673 7 BLTMMDCH40Z  5562 METROPCS, INC. 238   2014-04-30   
443-673 8 BLTMMDCH40Z  5562 METROPCS, INC. 238   2023-02-23   
443-673 9 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-11-30   
443-773 A BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-773 0 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-773 1 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-773 2 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-05-14   
443-773 3 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-773 4 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-773 5 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-773 6 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-773 7   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-06-26   
443-773 8   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-773 9 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-792 A BRKLMDBKRP0  9212 VERIZON MARYLAND, INC. 238      
443-792 0 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-10-07   
443-792 1   515J IP HORIZON LLC 238   2015-03-23   
443-792 2 BRKLMDBKRP0  9212 VERIZON MARYLAND, INC. 238   2007-11-17   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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