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Parkville, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
443-425 2   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-05-21   
443-425 3   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2008-10-01   
443-425 4   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-17   
443-425 5   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-17   
443-425 6   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-17   
443-425 7   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-17   
443-425 8   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-17   
443-425 9   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2015-06-30   
443-442 A   829J PAETEC ITEL, LLC 238   2025-04-01   
443-442 0   829J PAETEC ITEL, LLC 238      
443-442 1   829J PAETEC ITEL, LLC 238      
443-442 2   829J PAETEC ITEL, LLC 238      
443-442 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2020-05-11   
443-442 4   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2014-07-01   
443-442 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2020-05-11   
443-442 6   318J COMCAST IP PHONE, LLC 238   2014-07-18   
443-442 7   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2015-10-01   
443-442 8   829J PAETEC ITEL, LLC 238      
443-442 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-11-04   
443-461 A   829J PAETEC ITEL, LLC 238   2025-04-01   
443-461 0   829J PAETEC ITEL, LLC 238      
443-461 1   829J PAETEC ITEL, LLC 238      
443-461 2   829J PAETEC ITEL, LLC 238      
443-461 3   829J PAETEC ITEL, LLC 238      
443-461 4   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-03-02   
443-461 5   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-03-02   
443-461 6   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-03-02   
443-461 7   515J IP HORIZON LLC 238   2016-10-14   
443-461 8   073H TELNYX LLC 238   2017-03-14   
443-461 9   829J PAETEC ITEL, LLC 238      
443-495 A   071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-495 1   145J TERRA NOVA TELECOM INC. 238   2025-07-25   
443-495 2   318J COMCAST IP PHONE, LLC 238   2016-05-18   
443-495 3   071F BANDWIDTH.COM CLEC, LLC - MD 238   2017-07-31   
443-495 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-09-29   
443-495 5   071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-09-12   
443-495 6   876D ONVOY, LLC - MD 238   2018-05-27   
443-495 7   318J COMCAST IP PHONE, LLC 238   2015-09-25   
443-495 8   964H BARR TELL USA, INC. 238   2016-12-17   
443-495 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-08-14   
443-588 A BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-588 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-588 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-588 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-588 3   829J PAETEC ITEL, LLC 238   2015-09-04   
443-588 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-588 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-588 6   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
443-588 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-588 8   318J COMCAST IP PHONE, LLC 238   2015-04-13   
443-588 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-653 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-653 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-653 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-653 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-653 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-09-21   
443-653 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2013-12-27   
443-653 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-04-21   
443-653 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-653 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-12-13   
443-653 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-12-13   
443-653 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-678 A WHMRMDWMRS2  9212 VERIZON MARYLAND, INC. 238      
443-678 0   876D ONVOY, LLC - MD 238   2014-08-31   
443-678 1   9212 VERIZON MARYLAND, INC. 238      
443-678 2   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2016-02-05   
443-678 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2018-06-11   
443-678 4   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
443-678 5   876D ONVOY, LLC - MD 238   2024-02-23   
443-678 6   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-678 7   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-678 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-11-27   
443-678 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-11-27   
443-725 A   829J PAETEC ITEL, LLC 238   2025-04-01   
443-725 0   829J PAETEC ITEL, LLC 238      
443-725 1   829J PAETEC ITEL, LLC 238      
443-725 2   829J PAETEC ITEL, LLC 238      
443-725 3   829J PAETEC ITEL, LLC 238      
443-725 4   318J COMCAST IP PHONE, LLC 238   2006-12-29   
443-725 5   318J COMCAST IP PHONE, LLC 238   2006-12-29   
443-725 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2019-02-08   
443-725 7   318J COMCAST IP PHONE, LLC 238   2016-12-15   
443-725 8   829J PAETEC ITEL, LLC 238      
443-725 9   829J PAETEC ITEL, LLC 238      
443-793 A BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-793 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-793 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-793 2   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
443-793 3   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
443-793 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-793 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-05-29   
443-793 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-05-29   
443-793 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2018-08-11   
443-793 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2019-10-07   
443-793 9   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
443-946 A BLTQMD01BMD  2593 CORE COMMUNICATIONS, INC.- MD 238      
443-946 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2020-04-06   
443-946 1   318J COMCAST IP PHONE, LLC 238   2020-02-12   
443-946 2   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
443-946 3   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   

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

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