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Glen Burnie, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
443-422 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2011-04-03   
443-422 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2010-12-03   
443-422 9   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-08-18   
443-517 A   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-517 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-05-06   
443-517 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2019-12-20   
443-517 3   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-04-01   
443-517 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-05-06   
443-517 5   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-05-05   
443-517 6   318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-517 7   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-12-02   
443-517 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-04-21   
443-517 9   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-12-06   
443-557 A BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-557 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-557 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-557 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-557 3   876D ONVOY, LLC - MD 238   2016-02-29   
443-557 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-557 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-557 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-557 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-557 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-06-16   
443-557 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-572 A GLBRMDGLRP0  9212 VERIZON MARYLAND, INC. 238      
443-572 0   9212 VERIZON MARYLAND, INC. 238      
443-572 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-01-15   
443-572 2   5562 METROPCS, INC. 238   2016-10-01   
443-572 3   876D ONVOY, LLC - MD 238   2014-09-04   
443-572 4   876D ONVOY, LLC - MD 238   2016-02-29   
443-572 5   9212 VERIZON MARYLAND, INC. 238      
443-572 6   5562 METROPCS, INC. 238   2005-07-02   
443-572 7   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
443-572 8   9212 VERIZON MARYLAND, INC. 238      
443-572 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-08-17   
443-577 A   829J PAETEC ITEL, LLC 238   2025-04-01   
443-577 0   829J PAETEC ITEL, LLC 238      
443-577 1   829J PAETEC ITEL, LLC 238      
443-577 2   829J PAETEC ITEL, LLC 238      
443-577 3   829J PAETEC ITEL, LLC 238      
443-577 4   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2003-02-20   
443-577 5   829J PAETEC ITEL, LLC 238   2005-01-08   
443-577 6   071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-11-24   
443-577 7   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
443-577 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-07-14   
443-577 9   829J PAETEC ITEL, LLC 238      
443-591 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-591 0   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2009-07-06   
443-591 1   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2009-09-03   
443-591 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-01-13   

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

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