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Towson, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
443-377 2   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-377 3   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-01-02   
443-377 4   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-377 5   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-377 6   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-377 7   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-03-25   
443-377 8   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-05-02   
443-377 9   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-05-02   
443-465 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-465 0   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-465 1   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-465 2   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-10-17   
443-465 3   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-10-17   
443-465 4   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-465 5   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-465 6   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-465 7   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-10-17   
443-465 8   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-10-17   
443-465 9   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-10-17   
443-470 A   829J PAETEC ITEL, LLC 238   2025-04-01   
443-470 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-08-18   
443-470 1   829J PAETEC ITEL, LLC 238   2008-07-03   
443-470 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-10-23   
443-470 3   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-04-29   
443-470 4   829J PAETEC ITEL, LLC 238   2010-05-21   
443-470 5   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-06-26   
443-470 6   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-08-20   
443-470 7   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2011-12-01   
443-470 8   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2009-08-13   
443-470 9   071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
443-519 A   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-519 0   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2024-12-17   
443-519 1   145J TERRA NOVA TELECOM INC. 238   2024-10-12   
443-519 2   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2004-12-28   
443-519 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-05-01   
443-519 4   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-11-19   
443-519 5   318J COMCAST IP PHONE, LLC 238   2008-04-30   
443-519 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-01   
443-519 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-01   
443-519 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-01   
443-519 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-01   
443-564 A BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-564 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2004-03-03   
443-564 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2004-03-03   
443-564 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2004-03-03   
443-564 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2004-03-03   
443-564 4   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-564 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2004-03-03   
443-564 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2004-03-03   
443-564 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2004-03-03   
443-564 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-12-02   
443-564 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-12-09   
443-608 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-608 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-05-12   
443-608 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2011-05-07   
443-608 2   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-28   
443-608 3   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-28   
443-608 4   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-28   
443-608 5   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-06-02   
443-608 6   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-28   
443-608 7   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-28   
443-608 8   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-28   
443-608 9   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-28   
443-613 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-613 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-05-26   
443-613 1   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-07-06   
443-613 2   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-07-15   
443-613 3   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-06-20   
443-613 4   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-07-15   
443-613 5   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-07-15   
443-613 6   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-07-15   
443-613 7   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-07-15   
443-613 8   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-07-15   
443-613 9   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-28   
443-632 A   829J PAETEC ITEL, LLC 238   2025-04-01   
443-632 0   829J PAETEC ITEL, LLC 238      
443-632 1   829J PAETEC ITEL, LLC 238      
443-632 2   829J PAETEC ITEL, LLC 238      
443-632 3   829J PAETEC ITEL, LLC 238      
443-632 4   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-04-01   
443-632 5   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-06-02   
443-632 6   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-02-03   
443-632 7   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-02-03   
443-632 8   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-09-01   
443-632 9   829J PAETEC ITEL, LLC 238      
443-652 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-652 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-07-14   
443-652 1   876D ONVOY, LLC - MD 238   2024-11-04   
443-652 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-06-16   
443-652 3   318J COMCAST IP PHONE, LLC 238   2016-05-19   
443-652 4   071F BANDWIDTH.COM CLEC, LLC - MD 238   2016-07-21   
443-652 5   829J PAETEC ITEL, LLC 238   2016-07-01   
443-652 6   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2016-07-22   
443-652 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2018-09-20   
443-652 8   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-10-14   
443-652 9   515J IP HORIZON LLC 238   2016-10-14   
443-761 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-761 0   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-06-15   
443-761 1   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-03-16   
443-761 2   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-06-15   

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

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