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Baltimore, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
667-867 1   551G NUSO, LLC 238   2018-10-14   
667-867 2   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
667-867 3   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
667-867 4   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
667-867 5   939H COMMIO, LLC 238   2017-08-11   
667-867 6   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
667-867 7   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
667-867 8   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
667-867 9   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
667-888 A BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-888 0   876D ONVOY, LLC - MD 238   2015-07-27   
667-888 1   876D ONVOY, LLC - MD 238   2015-07-27   
667-888 2   876D ONVOY, LLC - MD 238   2015-07-27   
667-888 3   876D ONVOY, LLC - MD 238   2015-07-27   
667-888 4   876D ONVOY, LLC - MD 238   2015-07-27   
667-888 5   876D ONVOY, LLC - MD 238   2015-07-27   
667-888 6   876D ONVOY, LLC - MD 238   2015-07-27   
667-888 7   876D ONVOY, LLC - MD 238   2015-07-27   
667-888 8   876D ONVOY, LLC - MD 238   2014-09-26   
667-888 9   876D ONVOY, LLC - MD 238   2015-07-27   
667-895 A BLTMMDCHXMX  506J TWILIO INTERNATIONAL, INC. 238      
667-895 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-09-06   
667-895 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-09-03   
667-895 2   624H ONVOY SPECTRUM, LLC 238   2021-11-12   
667-895 3   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2021-03-19   
667-895 4   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2021-03-19   
667-895 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2021-07-12   
667-895 6   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2020-12-14   
667-895 7   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2021-09-23   
667-895 8   506J TWILIO INTERNATIONAL, INC. 238   2020-12-13   
667-895 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-09-03   
667-899 A BLTQMD01AMD  965H FRACTEL, LLC 238      
667-899 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-02-24   
667-899 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-02-24   
667-899 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-02-24   
667-899 3   876D ONVOY, LLC - MD 238   2022-05-15   
667-899 4   876D ONVOY, LLC - MD 238   2022-05-22   
667-899 5   071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-11-08   
667-899 6   071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-11-08   
667-899 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-02-24   
667-899 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-02-24   
667-899 9   965H FRACTEL, LLC 238   2021-12-26   
667-900 A BLTQMD018MD  145J TERRA NOVA TELECOM INC. 238      
667-900 0   145J TERRA NOVA TELECOM INC. 238   2019-04-21   
667-900 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2019-11-22   
667-900 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2019-11-22   
667-900 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2019-11-22   
667-900 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2019-11-22   
667-900 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2019-11-22   
667-900 6   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2020-04-15   
667-900 7   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2020-07-24   
667-900 8   071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-09-28   
667-900 9   071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-09-28   
667-910 A BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-910 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-07-29   
667-910 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-07-29   
667-910 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-07-29   
667-910 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-07-29   
667-910 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-07-29   
667-910 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-07-29   
667-910 6   876D ONVOY, LLC - MD 238   2021-08-28   
667-910 7   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2021-10-30   
667-910 8   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2021-09-10   
667-910 9   876D ONVOY, LLC - MD 238   2021-04-30   
667-930 A BLTMMDCHUMD  156J RCLEC, INC. 238      
667-930 0   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2015-11-07   
667-930 1   876D ONVOY, LLC - MD 238   2016-02-19   
667-930 2   876D ONVOY, LLC - MD 238   2016-02-19   
667-930 3   318J COMCAST IP PHONE, LLC 238   2015-08-11   
667-930 4   876D ONVOY, LLC - MD 238   2015-05-18   
667-930 5   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2020-05-01   
667-930 6   876D ONVOY, LLC - MD 238   2016-02-19   
667-930 7   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2016-11-05   
667-930 8   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2016-11-05   
667-930 9   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2016-11-05   

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

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