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Parkton, MD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-357 A PKTNMDPKRS0  9212 VERIZON MARYLAND, INC. 238      
410-357 0   9212 VERIZON MARYLAND, INC. 238      
410-357 1   071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
410-357 2   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-30   
410-357 3   318J COMCAST IP PHONE, LLC 238   2012-05-20   
410-357 4   9212 VERIZON MARYLAND, INC. 238      
410-357 5   9212 VERIZON MARYLAND, INC. 238      
410-357 6   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
410-357 7   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-30   
410-357 8   9212 VERIZON MARYLAND, INC. 238      
410-357 9   9212 VERIZON MARYLAND, INC. 238      
443-238 A   829J PAETEC ITEL, LLC 238   2025-04-01   
443-238 0   876D ONVOY, LLC - MD 238   2024-03-07   
443-238 1   876D ONVOY, LLC - MD 238   2016-03-21   
443-238 2   829J PAETEC ITEL, LLC 238      
443-238 3   876D ONVOY, LLC - MD 238   2016-03-21   
443-238 4   145J TERRA NOVA TELECOM INC. 238   2024-02-15   
443-238 5   318J COMCAST IP PHONE, LLC 238   2015-09-21   
443-238 6   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-238 7   508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-12   
443-238 8   073H TELNYX LLC 238   2017-04-26   
443-238 9   145J TERRA NOVA TELECOM INC. 238   2024-09-12   
443-491 A   876D ONVOY, LLC - MD 238      
443-491 2   829J PAETEC ITEL, LLC 238   2005-10-07   
443-491 3   318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-491 7   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2020-09-04   
443-491 8   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-11-18   
443-491 9   876D ONVOY, LLC - MD 238   2012-10-07   
443-672 A BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-672 0   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-04-02   
443-672 1   829J PAETEC ITEL, LLC 238   2004-01-31   
443-672 2   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-02-25   
443-672 3   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   
443-672 4   876D ONVOY, LLC - MD 238   2019-02-19   
443-672 5   876D ONVOY, LLC - MD 238   2019-02-19   
443-672 6   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-672 7   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-672 8   071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-10-12   
443-672 9   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
667-329 A BLTMMDCHXTX  073H TELNYX LLC 238      
667-329 0   073H TELNYX LLC 238   2021-08-14   
667-329 1   876D ONVOY, LLC - MD 238   2024-04-19   
667-329 6   624H ONVOY SPECTRUM, LLC 238   2022-02-04   
667-329 7   624H ONVOY SPECTRUM, LLC 238   2022-02-04   
667-329 9   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2024-03-22   
667-370 A BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-370 0   876D ONVOY, LLC - MD 238   2021-05-23   
667-370 1   876D ONVOY, LLC - MD 238   2021-05-23   
667-370 2   876D ONVOY, LLC - MD 238   2021-05-23   
667-370 3   876D ONVOY, LLC - MD 238   2021-05-23   
667-370 6   624H ONVOY SPECTRUM, LLC 238   2021-05-23   
667-370 7   876D ONVOY, LLC - MD 238   2021-05-22   
667-370 8   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2024-12-19   
667-370 9   071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-01-03   

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

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