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Catonsville, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
443-860 8   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-860 9   318J COMCAST IP PHONE, LLC 238   2006-12-14   
443-887 A   829J PAETEC ITEL, LLC 238   2025-04-01   
443-887 0   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 1   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 2   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 3   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 4   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 5   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 6   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 7   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 8   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 9   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-980 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-980 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-980 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-980 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-980 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-980 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-980 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-980 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-04-27   
443-980 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-980 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-980 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-996 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-345 A BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
667-345 0   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-07-26   
667-345 1   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-07-26   
667-345 2   624H ONVOY SPECTRUM, LLC 238   2021-11-21   
667-345 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-07-09   
667-345 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-07-09   
667-345 5   876D ONVOY, LLC - MD 238   2021-05-21   
667-345 6   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-07-26   
667-345 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2019-11-08   
667-345 8   876D ONVOY, LLC - MD 238   2021-04-29   
667-345 9   876D ONVOY, LLC - MD 238   2021-04-29   
667-369 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-369 0   071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-11-04   
667-369 1   624H ONVOY SPECTRUM, LLC 238   2022-03-24   
667-369 2   624H ONVOY SPECTRUM, LLC 238   2022-03-24   
667-369 3   624H ONVOY SPECTRUM, LLC 238   2022-02-10   
667-369 4   624H ONVOY SPECTRUM, LLC 238   2022-02-10   
667-369 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-21   
667-369 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-12-04   
667-369 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-12-04   
667-369 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-21   
667-369 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-21   
667-419 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-419 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-02-05   
667-419 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-04-01   
667-419 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-04-01   
667-419 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-04-01   
667-419 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-04-01   
667-419 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-04-01   
667-419 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-04-01   
667-419 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-04-01   
667-419 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-01-08   
667-419 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-01-08   
667-432 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-432 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-06-26   
667-432 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-06-26   
667-432 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-06-26   
667-432 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-06-24   
667-432 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-06-24   
667-432 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-06-24   
667-432 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-06-24   
667-432 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-06-24   
667-432 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-06-24   
667-432 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-06-24   
667-433 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-433 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-07-07   
667-433 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-07-07   
667-433 2   876D ONVOY, LLC - MD 238   2023-08-10   
667-433 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-07-06   
667-433 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-07-06   
667-433 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-07-06   
667-433 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-07-06   
667-433 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-07-06   
667-433 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-07-06   
667-433 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-07-06   
667-438 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-438 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-09-02   
667-438 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-09-02   
667-438 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-09-02   
667-438 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-09-02   
667-438 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-09-02   
667-438 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-09-02   
667-438 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-09-02   
667-438 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-09-02   
667-438 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-09-02   
667-438 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-09-02   
667-445 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-445 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-09-26   
667-445 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-09-26   
667-445 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-09-26   
667-445 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-09-26   
667-445 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-09-26   
667-445 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-09-26   
667-445 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-09-26   
667-445 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-09-23   

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

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