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Baltimore, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
443-500 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-500 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-500 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-500 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-500 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-500 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-506 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-506 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-506 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-506 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-506 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-506 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-506 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-506 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-506 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-506 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-506 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-509 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-509 0   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2009-04-11   
443-509 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-10-21   
443-509 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-05-19   
443-509 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-05-19   
443-509 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-05-19   
443-509 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-05-19   
443-509 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-11-08   
443-509 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-10-21   
443-509 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-10-21   
443-509 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-10-21   
443-524 A BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-525 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-525 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-525 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-525 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-525 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-525 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-525 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-525 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-525 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-525 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-525 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-09   
443-527 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-529 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-529 0   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-06-26   
443-529 1   829J PAETEC ITEL, LLC 238   2008-11-10   
443-529 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-09-29   
443-529 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-09-29   
443-529 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-09-29   
443-529 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-09-29   
443-529 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-09-29   
443-529 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-09-29   
443-529 8   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-06-26   
443-529 9   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-06-26   
443-531 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-531 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-23   
443-531 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-23   
443-531 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-23   
443-531 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-23   
443-531 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-23   
443-531 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-23   
443-531 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-23   
443-531 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-23   
443-531 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-23   
443-531 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-23   
443-540 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-552 A BLTMMDMDDS0  9212 VERIZON MARYLAND, INC. 238      
443-552 0   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-16   
443-552 1   318J COMCAST IP PHONE, LLC 238   2016-01-05   
443-552 2   9212 VERIZON MARYLAND, INC. 238      
443-552 3   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-16   
443-552 4   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-16   
443-552 5   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-16   
443-552 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-04-20   
443-552 7   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-16   
443-552 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-04-20   
443-552 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-09-22   
443-560 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2024-02-09   
443-560 0   876D ONVOY, LLC - MD 238   2024-02-24   
443-560 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-01   
443-560 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-01   
443-560 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-01   
443-560 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-01   
443-560 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-01   
443-560 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-01   
443-560 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-01   
443-560 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-01   
443-560 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-01   
443-562 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-563 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-563 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-07-07   
443-563 1   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2007-09-25   
443-563 2   318J COMCAST IP PHONE, LLC 238   2014-06-12   
443-563 3   876D ONVOY, LLC - MD 238   2024-04-04   
443-563 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-02-14   
443-563 5   876D ONVOY, LLC - MD 238   2024-04-04   
443-563 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-02-14   
443-563 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-02-14   
443-563 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-02-14   
443-563 9   876D ONVOY, LLC - MD 238   2024-04-04   
443-570 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-571 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      

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Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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