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Arbutus, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-536 3 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2024-02-14   
410-536 4 ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-536 5 ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-536 6   145J TERRA NOVA TELECOM INC. 238   2024-02-14   
410-536 7 ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-536 9 ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-565 A BLTMMDSNNMD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-565 0 BLTMMDSNNMD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-565 1 BLTMMDSNNMD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-565 2 BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-08-12   
410-565 3 BLTMMDSNNMD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-565 4 BLTMMDSNNMD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-565 5 BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2007-10-22   
410-565 6 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2009-05-10   
410-565 7 BLTMMDSNNMD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-565 8   515J IP HORIZON LLC 238   2015-03-23   
410-565 9 BLTMMDSNNMD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-587 A BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
410-587 0 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-07   
410-587 1 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
410-587 2 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-07   
410-587 3 BLTMMDCHXVX  321J HD CARRIER LLC 238   2016-05-14   
410-587 4 BLTMMDCHXVX  321J HD CARRIER LLC 238   2016-05-14   
410-587 5 BLTMMDCHXVX  321J HD CARRIER LLC 238   2016-05-14   
410-587 6 BLTMMDCHXVX  321J HD CARRIER LLC 238   2016-05-14   
410-587 7 BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-05-28   
410-587 8 BLTMMDCHXVX  321J HD CARRIER LLC 238   2016-05-14   
410-587 9 BLTMMDCHXVX  321J HD CARRIER LLC 238   2016-05-14   
410-737 A ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
443-297 A BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-297 0   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-03-29   
443-297 1 PIVLMDPKXEX  829J PAETEC ITEL, LLC 238   2012-05-14   
443-297 2 BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-08-12   
443-297 3 BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-297 4 BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-08-12   
443-297 5 BLTMMDCH08Z  4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2004-02-14   
443-297 6 BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-25   
443-297 7 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-09-04   
443-297 8 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2002-01-09   
443-297 9 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
443-304 A BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-304 0   145J TERRA NOVA TELECOM INC. 238   2024-10-12   
443-304 1 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-02-10   
443-304 2 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-304 3 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2006-10-14   
443-304 5 BLTQMD013MD  939H COMMIO, LLC 238   2021-06-12   
443-304 6 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2006-10-20   
443-304 7 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-25   
443-304 8 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-28   
443-304 9 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-02-27   

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

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