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Arbutus, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-204 A ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-204 0   964H BARR TELL USA, INC. 238   2016-12-17   
410-204 1   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-21   
410-204 2   876D ONVOY, LLC - MD 238   2016-03-09   
410-204 3   071F BANDWIDTH.COM CLEC, LLC - MD 238   2018-10-18   
410-204 4   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-21   
410-204 5   876D ONVOY, LLC - MD 238   2016-03-31   
410-204 6   9212 VERIZON MARYLAND, INC. 238      
410-204 7   9212 VERIZON MARYLAND, INC. 238      
410-204 8   318J COMCAST IP PHONE, LLC 238   2015-11-27   
410-204 9   515J IP HORIZON LLC 238   2016-01-04   
410-242 A ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-247 A ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-314 A BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-314 0   939H COMMIO, LLC 238   2021-06-12   
410-314 1   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-314 2   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-314 3   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
410-314 4   073H TELNYX LLC 238   2017-03-14   
410-314 5   829J PAETEC ITEL, LLC 238   2004-03-27   
410-314 6   5562 METROPCS, INC. 238   2013-08-12   
410-314 7   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
410-314 8   5562 METROPCS, INC. 238   2013-08-12   
410-314 9   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-395 A ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-395 0   9212 VERIZON MARYLAND, INC. 238      
410-395 1   9212 VERIZON MARYLAND, INC. 238      
410-395 2   9212 VERIZON MARYLAND, INC. 238      
410-395 3   9212 VERIZON MARYLAND, INC. 238      
410-395 4   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-01-27   
410-395 5   9212 VERIZON MARYLAND, INC. 238      
410-395 6   9212 VERIZON MARYLAND, INC. 238      
410-395 7   9212 VERIZON MARYLAND, INC. 238      
410-395 8   9212 VERIZON MARYLAND, INC. 238      
410-395 9   9212 VERIZON MARYLAND, INC. 238      
410-501 A   829J PAETEC ITEL, LLC 238   2025-04-01   
410-501 0   5562 METROPCS, INC. 238   2013-06-14   
410-501 1   829J PAETEC ITEL, LLC 238   2005-07-30   
410-501 2   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
410-501 3   318J COMCAST IP PHONE, LLC 238   2008-02-20   
410-501 4   5562 METROPCS, INC. 238   2013-06-14   
410-501 5   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-12-23   
410-501 6   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-12-23   
410-501 7   5562 METROPCS, INC. 238   2013-06-14   
410-501 8   5562 METROPCS, INC. 238   2013-06-14   
410-501 9   5562 METROPCS, INC. 238   2013-06-14   
410-536 A ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-536 0   9212 VERIZON MARYLAND, INC. 238      
410-536 1   9212 VERIZON MARYLAND, INC. 238      
410-536 2   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-28   
410-536 3   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2024-02-14   
410-536 4   9212 VERIZON MARYLAND, INC. 238      
410-536 5   9212 VERIZON MARYLAND, INC. 238      
410-536 6   145J TERRA NOVA TELECOM INC. 238   2024-02-14   
410-536 7   9212 VERIZON MARYLAND, INC. 238      
410-536 8   145J TERRA NOVA TELECOM INC. 238   2021-01-27   
410-536 9   9212 VERIZON MARYLAND, INC. 238      
410-565 A BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-565 0   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-565 1   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-565 2   5562 METROPCS, INC. 238   2013-08-12   
410-565 3   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-565 4   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-565 5   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2007-10-22   
410-565 6   318J COMCAST IP PHONE, LLC 238   2009-05-10   
410-565 7   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-565 8   515J IP HORIZON LLC 238   2015-03-23   
410-565 9   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-587 A BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
410-587 0   876D ONVOY, LLC - MD 238   2016-03-07   
410-587 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
410-587 2   876D ONVOY, LLC - MD 238   2016-03-07   
410-587 3   321J HD CARRIER LLC 238   2016-05-14   
410-587 4   321J HD CARRIER LLC 238   2016-05-14   
410-587 5   321J HD CARRIER LLC 238   2016-05-14   
410-587 6   321J HD CARRIER LLC 238   2016-05-14   
410-587 7   8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-05-28   
410-587 8   321J HD CARRIER LLC 238   2016-05-14   
410-587 9   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   829J PAETEC ITEL, LLC 238   2012-05-14   
443-297 2   5562 METROPCS, INC. 238   2013-08-12   
443-297 3   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-297 4   5562 METROPCS, INC. 238   2013-08-12   
443-297 5   4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2004-02-14   
443-297 6   508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-25   
443-297 7   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-09-04   
443-297 8   318J COMCAST IP PHONE, LLC 238   2002-01-09   
443-297 9   071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
443-304 A   071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-304 0   145J TERRA NOVA TELECOM INC. 238   2024-10-12   
443-304 1   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-02-10   
443-304 2   318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-304 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2006-10-14   
443-304 5   939H COMMIO, LLC 238   2021-06-12   
443-304 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2006-10-20   
443-304 7   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-25   
443-304 8   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-28   

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

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