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Severn, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-222 A GLBRMDGLRP0  9212 VERIZON MARYLAND, INC. 238      
410-514 A DRCRMDDCDS0  9212 VERIZON MARYLAND, INC. 238      
410-514 0   829J PAETEC ITEL, LLC 238   2003-02-27   
410-514 1 BLTMMDCH08Z  4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2004-02-14   
410-514 2   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-04-02   
410-514 3 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-14   
410-514 4   829J PAETEC ITEL, LLC 238   2007-07-13   
410-514 5 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-10-23   
410-514 6 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-05-26   
410-514 7 DRCRMDDCDS0  9212 VERIZON MARYLAND, INC. 238      
410-514 8 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-07   
410-514 9 DRCRMDDCDS0  9212 VERIZON MARYLAND, INC. 238      
410-519 A ODTNMDONDS0  9212 VERIZON MARYLAND, INC. 238      
410-551 A ODTNMDONDS0  9212 VERIZON MARYLAND, INC. 238      
410-729 A DRCRMDDCDS0  9212 VERIZON MARYLAND, INC. 238      
410-729 0 DRCRMDDCDS0  9212 VERIZON MARYLAND, INC. 238      
410-729 1 DRCRMDDCDS0  9212 VERIZON MARYLAND, INC. 238      
410-729 2 DRCRMDDCDS0  9212 VERIZON MARYLAND, INC. 238      
410-729 3 DRCRMDDCDS0  9212 VERIZON MARYLAND, INC. 238      
410-729 4 DRCRMDDCDS0  9212 VERIZON MARYLAND, INC. 238      
410-729 5 DRCRMDDCDS0  9212 VERIZON MARYLAND, INC. 238      
410-729 6 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-14   
410-729 7 DRCRMDDCDS0  9212 VERIZON MARYLAND, INC. 238      
410-729 8 DRCRMDDCDS0  9212 VERIZON MARYLAND, INC. 238      
410-729 9 DRCRMDDCDS0  9212 VERIZON MARYLAND, INC. 238      
410-846 A BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-846 0 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-02-14   
410-846 1 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2007-06-19   
410-846 2 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-08-12   
410-846 3 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2007-11-20   
410-846 4 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2003-08-20   
410-846 5 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
410-846 6 BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2012-10-11   
410-846 7 BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2012-10-11   
410-846 8 BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2012-10-11   
410-846 9 BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-921 A BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-921 0 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
410-921 1 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-09-03   
410-921 2 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2013-01-31   
410-921 3 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2013-01-31   
410-921 4 BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-921 5 BLTMMDCH40Z  5562 METROPCS, INC. 238   2014-07-25   
410-921 6 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-28   
410-921 7 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-08-20   
410-921 8 BLTMMDCH40Z  5562 METROPCS, INC. 238   2014-08-31   
410-921 9 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-02-26   
410-969 A GLBRMDGLRP0  9212 VERIZON MARYLAND, INC. 238      
410-987 A DRCRMDDCDS0  9212 VERIZON MARYLAND, INC. 238      
443-274 A ODTNMDPORS2  9212 VERIZON MARYLAND, INC. 238      
443-274 0 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-02-27   
443-274 1   829J PAETEC ITEL, LLC 238   2005-10-17   
443-274 2 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-09-20   
443-274 3 BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2008-10-01   
443-274 4 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-02-29   
443-274 5 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2013-04-22   
443-274 6   829J PAETEC ITEL, LLC 238   2005-07-04   
443-274 7 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2013-04-22   
443-274 8 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2016-04-18   
443-274 9 ODTNMDPORS2  9212 VERIZON MARYLAND, INC. 238      
443-308 A BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-308 0 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-308 1 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-308 2 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-308 3 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-14   
443-308 4 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-308 5 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-308 6 BLTMMDCH40Z  5562 METROPCS, INC. 238   2019-11-29   
443-308 7 BLTMMDCH40Z  5562 METROPCS, INC. 238   2017-10-01   
443-308 8 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-14   
443-308 9 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-363 A BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
443-363 0 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-04-14   
443-363 1 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-04-14   
443-363 2   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
443-363 3 BLTMMDCH40Z  5562 METROPCS, INC. 238   2019-03-31   
443-363 4   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-363 5 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-04-14   
443-363 6   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-363 7 BLTMMDCH40Z  5562 METROPCS, INC. 238   2018-10-05   
443-363 8 BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-25   
443-363 9 BLTMMDCH40Z  5562 METROPCS, INC. 238   2020-12-31   
443-599 A   5562 METROPCS, INC. 238      
443-599 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-04-08   
443-599 1 BLTQMD018MD  145J TERRA NOVA TELECOM INC. 238   2024-10-12   
443-599 2 BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-06-14   
443-599 3 BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-06-14   
443-599 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-05-09   
443-599 5 BLTMMDCH40Z  5562 METROPCS, INC. 238   2020-09-06   
443-599 6 BLTMMDCH40Z  5562 METROPCS, INC. 238   2015-02-01   
443-599 7 BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-25   
443-599 8 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-06-02   
443-599 9 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
443-679 A BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-679 0 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2020-04-22   
443-679 1   829J PAETEC ITEL, LLC 238   2002-04-22   
443-679 2 BLTMMDCH40Z  5562 METROPCS, INC. 238   2018-02-08   
443-679 3 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-14   
443-679 4 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2016-12-15   
443-679 5 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-06-18   

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

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