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Sparks-Glencoe, MD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-343 A PKTNMDPKRS0  9212 VERIZON MARYLAND, INC. 238      
410-343 0   9212 VERIZON MARYLAND, INC. 238      
410-343 1   9212 VERIZON MARYLAND, INC. 238      
410-343 2   9212 VERIZON MARYLAND, INC. 238      
410-343 3   9212 VERIZON MARYLAND, INC. 238      
410-343 4   876D ONVOY, LLC - MD 238   2016-03-31   
410-343 5   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-04-02   
410-343 6   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-30   
410-343 7   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-03-05   
410-343 8   829J PAETEC ITEL, LLC 238   2006-01-31   
410-343 9   071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
410-472 A MANRMDMNRS0  9212 VERIZON MARYLAND, INC. 238      
410-472 0   9212 VERIZON MARYLAND, INC. 238      
410-472 1   9212 VERIZON MARYLAND, INC. 238      
410-472 2   9212 VERIZON MARYLAND, INC. 238      
410-472 3   9212 VERIZON MARYLAND, INC. 238      
410-472 4   9212 VERIZON MARYLAND, INC. 238      
410-472 5   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2011-04-03   
410-472 6   9212 VERIZON MARYLAND, INC. 238      
410-472 7   9212 VERIZON MARYLAND, INC. 238      
410-472 8   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-30   
410-472 9   9212 VERIZON MARYLAND, INC. 238      
443-212 A   829J PAETEC ITEL, LLC 238   2025-04-01   
443-212 1   829J PAETEC ITEL, LLC 238   2003-03-29   
443-212 3   876D ONVOY, LLC - MD 238   2021-03-04   
443-212 4   829J PAETEC ITEL, LLC 238   2004-09-28   
443-212 5   318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-212 6   145J TERRA NOVA TELECOM INC. 238   2025-04-09   
443-212 7   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2008-07-01   
443-212 8   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
443-212 9   876D ONVOY, LLC - MD 238   2021-05-21   
443-338 A   829J PAETEC ITEL, LLC 238   2025-04-01   
443-338 0   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-06-07   
443-338 1   515J IP HORIZON LLC 238   2015-03-21   
443-338 2   829J PAETEC ITEL, LLC 238      
443-338 3   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-07-06   
443-338 4   318J COMCAST IP PHONE, LLC 238   2015-08-06   
443-338 5   515J IP HORIZON LLC 238   2016-05-31   
443-338 6   071F BANDWIDTH.COM CLEC, LLC - MD 238   2017-02-27   
443-338 7   508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-25   
443-338 8   876D ONVOY, LLC - MD 238   2016-03-26   
443-338 9   876D ONVOY, LLC - MD 238   2016-03-26   
443-595 A   071F BANDWIDTH.COM CLEC, LLC - MD 238   2025-04-14   
443-595 3   829J PAETEC ITEL, LLC 238   2006-07-01   
443-595 4   071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-09-28   
443-595 6   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-02-18   
443-595 7   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-05-20   
443-595 8   318J COMCAST IP PHONE, LLC 238   2012-05-26   
443-595 9   876D ONVOY, LLC - MD 238   2012-10-08   
443-662 A   829J PAETEC ITEL, LLC 238   2025-04-01   
443-662 0   829J PAETEC ITEL, LLC 238      
443-662 1   829J PAETEC ITEL, LLC 238      
443-662 2   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-662 3   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-662 4   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2004-07-24   
443-662 5   071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-07-03   
443-662 6   073H TELNYX LLC 238   2017-04-26   
443-662 7   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-662 8   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-662 9   829J PAETEC ITEL, LLC 238      
667-772 A BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
667-772 0   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2024-02-23   
667-772 1   876D ONVOY, LLC - MD 238   2022-10-16   
667-772 2   876D ONVOY, LLC - MD 238   2021-07-12   
667-772 3   876D ONVOY, LLC - MD 238   2021-07-12   
667-772 4   624H ONVOY SPECTRUM, LLC 238   2022-03-10   
667-772 5   624H ONVOY SPECTRUM, LLC 238   2022-03-10   
667-772 6   876D ONVOY, LLC - MD 238   2022-02-05   
667-772 7   624H ONVOY SPECTRUM, LLC 238   2021-06-27   
667-772 8   876D ONVOY, LLC - MD 238   2022-02-05   
667-772 9   516J TON80 COMMUNICATIONS, LLC 238   2022-04-10   

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

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