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Baltimore, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
667-258 2   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-12   
667-258 3   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-12   
667-258 4   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-12   
667-258 5   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-12   
667-258 6   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-12   
667-258 7   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-12   
667-258 8   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-12   
667-258 9   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-12   
667-260 A BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-260 0   876D ONVOY, LLC - MD 238   2025-01-06   
667-260 1   876D ONVOY, LLC - MD 238   2025-01-06   
667-260 2   318J COMCAST IP PHONE, LLC 238   2017-06-30   
667-260 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-09-19   
667-260 4   318J COMCAST IP PHONE, LLC 238   2017-10-02   
667-260 5   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2017-10-01   
667-260 6   876D ONVOY, LLC - MD 238   2016-02-12   
667-260 7   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-08-12   
667-260 8   551G NUSO, LLC 238   2016-04-01   
667-260 9   515J IP HORIZON LLC 238   2016-05-31   
667-262 A BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
667-262 0   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-08-12   
667-262 1   071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-11-08   
667-262 2   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-08-12   
667-262 3   624H ONVOY SPECTRUM, LLC 238   2020-07-08   
667-262 4   624H ONVOY SPECTRUM, LLC 238   2020-07-08   
667-262 5   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2020-06-12   
667-262 6   876D ONVOY, LLC - MD 238   2019-11-17   
667-262 7   876D ONVOY, LLC - MD 238   2019-11-17   
667-262 8   624H ONVOY SPECTRUM, LLC 238   2020-07-08   
667-262 9   071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-09-28   
667-284 A BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
667-284 0   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2020-09-20   
667-284 1   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2020-09-20   
667-284 2   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2020-09-20   
667-284 3   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2020-09-20   
667-284 4   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2020-09-20   
667-284 5   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2020-09-20   
667-284 6   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2020-09-20   
667-284 7   624H ONVOY SPECTRUM, LLC 238   2021-11-12   
667-284 8   071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-09-28   
667-284 9   071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-09-28   
667-290 A BLTMMDCHXHX  515J IP HORIZON LLC 238      
667-290 0   071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-11-01   
667-290 1   515J IP HORIZON LLC 238   2020-10-31   
667-290 2   071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-11-01   
667-290 3   071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-11-01   
667-290 4   071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-11-01   
667-290 5   071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-11-01   
667-290 6   876D ONVOY, LLC - MD 238   2020-12-26   
667-290 7   876D ONVOY, LLC - MD 238   2020-12-26   
667-290 8   876D ONVOY, LLC - MD 238   2021-02-18   
667-290 9   876D ONVOY, LLC - MD 238   2021-02-18   
667-303 A BLTMMDCHDMD  551G NUSO, LLC 238      
667-303 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-08-09   
667-303 1   551G NUSO, LLC 238   2013-05-08   
667-303 2   551G NUSO, LLC 238   2014-02-06   
667-303 3   318J COMCAST IP PHONE, LLC 238   2014-04-14   
667-303 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-08-09   
667-303 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-08-09   
667-303 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-08-09   
667-303 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-08-09   
667-303 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-08-09   
667-303 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-10-09   
667-306 A BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
667-306 0   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2021-05-25   
667-306 1   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2021-05-25   
667-306 2   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2021-05-25   
667-306 3   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2021-05-25   
667-306 4   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2021-05-25   
667-306 5   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2021-05-25   
667-306 6   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2021-05-25   
667-306 7   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2021-05-25   
667-306 8   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2021-05-25   
667-306 9   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2021-05-25   
667-309 A BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-309 0   515J IP HORIZON LLC 238   2014-11-27   
667-309 1   515J IP HORIZON LLC 238   2013-09-22   
667-309 2   876D ONVOY, LLC - MD 238   2015-07-27   
667-309 3   318J COMCAST IP PHONE, LLC 238   2014-05-30   
667-309 4   876D ONVOY, LLC - MD 238   2015-07-27   
667-309 5   876D ONVOY, LLC - MD 238   2015-07-27   
667-309 6   318J COMCAST IP PHONE, LLC 238   2014-03-04   
667-309 7   318J COMCAST IP PHONE, LLC 238   2014-03-04   
667-309 8   876D ONVOY, LLC - MD 238   2015-07-27   
667-309 9   876D ONVOY, LLC - MD 238   2015-07-27   
667-312 A BLTMMDSN1MD  361H ATLANTECH ONLINE, INC. - MD 238      
667-312 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-10-09   
667-312 1   361H ATLANTECH ONLINE, INC. - MD 238   2015-07-20   
667-312 2   318J COMCAST IP PHONE, LLC 238   2016-01-05   
667-312 3   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2015-11-16   
667-312 4   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2017-02-09   
667-312 5   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2018-11-15   
667-312 6   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-12   
667-312 7   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-12   
667-312 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-10-09   
667-312 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-10-09   
667-335 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-335 0   071F BANDWIDTH.COM CLEC, LLC - MD 238   2021-10-11   
667-335 1   071F BANDWIDTH.COM CLEC, LLC - MD 238   2021-10-11   
667-335 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-10-24   

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

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