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Centreville, MD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-490 A ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
410-739 A SLBRMDSCXLX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
410-739 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
410-739 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
410-739 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
410-739 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
410-739 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
410-739 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
410-739 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
410-739 7   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2005-05-02   
410-739 8   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2005-09-01   
410-739 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
410-758 A CNVLMDCTRS2  9212 VERIZON MARYLAND, INC. 242      
410-758 0   9212 VERIZON MARYLAND, INC. 242      
410-758 1   9212 VERIZON MARYLAND, INC. 242      
410-758 2   9212 VERIZON MARYLAND, INC. 242      
410-758 3   9212 VERIZON MARYLAND, INC. 242      
410-758 4   9212 VERIZON MARYLAND, INC. 242      
410-758 5   9212 VERIZON MARYLAND, INC. 242      
410-758 6   9212 VERIZON MARYLAND, INC. 242      
410-758 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
410-758 8   9212 VERIZON MARYLAND, INC. 242      
410-758 9   9212 VERIZON MARYLAND, INC. 242      
443-262 A CNVLMDCTRS2  9212 VERIZON MARYLAND, INC. 242      
443-262 0   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2012-08-27   
443-262 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2004-01-18   
443-262 2   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2004-02-28   
443-262 3   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-02   
443-262 4   9212 VERIZON MARYLAND, INC. 242   2004-06-21   
443-262 5   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2005-12-02   
443-262 6   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2006-04-01   
443-262 7   073H TELNYX LLC 242   2017-09-13   
443-262 8   228C IDT AMERICA, CORP. - MD 242   2006-05-06   
443-262 9   9212 VERIZON MARYLAND, INC. 242      
443-988 A SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242      
443-988 0   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2006-08-07   
443-988 1   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2007-01-02   
443-988 2   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2008-10-03   
443-988 3   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2008-03-03   
443-988 4   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242   2009-03-02   
443-988 5   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-05-02   
443-988 6   829J PAETEC ITEL, LLC 242   2016-11-18   
443-988 7   876D ONVOY, LLC - MD 242   2017-04-13   
443-988 8   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2006-09-01   
443-988 9   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2017-08-31   
667-230 A SLBRMD90DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 242      
667-230 0   568G PEERLESS NETWORK OF MARYLAND, LLC 242   2018-04-15   
667-230 1   876D ONVOY, LLC - MD 242   2021-03-05   
667-230 2   876D ONVOY, LLC - MD 242   2018-05-27   
667-230 3   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2020-08-10   
667-230 4   568G PEERLESS NETWORK OF MARYLAND, LLC 242   2021-02-27   
667-230 5   568G PEERLESS NETWORK OF MARYLAND, LLC 242   2020-10-28   
667-230 6   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-07-31   
667-230 7   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-07-31   
667-230 8   876D ONVOY, LLC - MD 242   2019-03-04   
667-230 9   876D ONVOY, LLC - MD 242   2019-03-04   
667-246 A ESTNMDBNGT0  2593 CORE COMMUNICATIONS, INC.- MD 242      
667-246 0   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-08-03   
667-246 1   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-08-03   
667-246 2   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-08-03   
667-246 3   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
667-246 4   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
667-246 5   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
667-246 6   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
667-246 7   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
667-246 8   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
667-246 9   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
667-337 A SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-337 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2021-08-14   
667-337 1   624H ONVOY SPECTRUM, LLC 242   2022-02-05   
667-337 2   876D ONVOY, LLC - MD 242   2021-07-12   
667-337 3   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2024-01-06   
667-337 4   624H ONVOY SPECTRUM, LLC 242   2021-05-27   
667-337 5   876D ONVOY, LLC - MD 242   2021-09-25   
667-337 6   876D ONVOY, LLC - MD 242   2021-05-17   
667-337 7   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2021-07-12   
667-337 8   624H ONVOY SPECTRUM, LLC 242   2022-02-05   
667-337 9   568G PEERLESS NETWORK OF MARYLAND, LLC 242   2021-12-25   
667-526 A SLBRMD90BMD  516J TON80 COMMUNICATIONS, LLC 242      
667-526 0   073H TELNYX LLC 242   2023-02-27   
667-526 2   876D ONVOY, LLC - MD 242   2024-03-07   
667-526 3   516J TON80 COMMUNICATIONS, LLC 242   2022-05-07   
667-526 4   876D ONVOY, LLC - MD 242   2024-06-23   
667-526 5   318J COMCAST IP PHONE, LLC 242   2024-12-21   
667-526 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2025-05-10   
667-526 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2025-05-10   
667-526 9   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2025-10-24   

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

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