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NPA: 667 [Rate centres in NPA 667] [Dial plan for NPA 667]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-722 5 Glenwood MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-12-06   
667-722 6 Glenwood MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   
667-722 7 Glenwood MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   
667-722 8 Glenwood MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-05-06   
667-722 9 Glenwood MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-30   
667-727 A Sudlersville MD ESTNMDBNGT0  2593 CORE COMMUNICATIONS, INC.- MD 242      
667-727 0 Sudlersville MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-12-07   
667-727 1 Sudlersville MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-12-07   
667-727 2 Sudlersville MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-12-07   
667-727 3 Sudlersville MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242   2019-04-22   
667-727 4 Sudlersville MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-03-29   
667-727 5 Sudlersville MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-03-29   
667-727 6 Sudlersville MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-03-29   
667-727 7 Sudlersville MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-03-29   
667-727 8 Sudlersville MD   876D ONVOY, LLC - MD 242   2019-03-10   
667-727 9 Sudlersville MD   876D ONVOY, LLC - MD 242   2019-03-10   
667-737 A Perryville MD BLTQMD01BMD  516J TON80 COMMUNICATIONS, LLC 238      
667-737 0 Perryville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-03-11   
667-737 7 Perryville MD   516J TON80 COMMUNICATIONS, LLC 238   2022-05-04   
667-737 8 Perryville MD   318J COMCAST IP PHONE, LLC 238   2022-05-07   
667-737 9 Perryville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2023-10-20   
667-743 A Queenstown MD SLBRMD90BMD  516J TON80 COMMUNICATIONS, LLC 242      
667-743 0 Queenstown MD   318J COMCAST IP PHONE, LLC 242   2023-12-31   
667-743 1 Queenstown MD   490J DISH WIRELESS, LLC 242   2023-02-27   
667-743 7 Queenstown MD   516J TON80 COMMUNICATIONS, LLC 242   2022-05-10   
667-746 A Glenwood MD BLTQMD01BMD  516J TON80 COMMUNICATIONS, LLC 238      
667-746 0 Glenwood MD   876D ONVOY, LLC - MD 238   2023-10-22   
667-746 1 Glenwood MD   876D ONVOY, LLC - MD 238   2023-10-22   
667-746 2 Glenwood MD   876D ONVOY, LLC - MD 238   2023-10-22   
667-746 3 Glenwood MD   876D ONVOY, LLC - MD 238   2023-10-22   
667-746 4 Glenwood MD   876D ONVOY, LLC - MD 238   2023-10-22   
667-746 7 Glenwood MD   516J TON80 COMMUNICATIONS, LLC 238   2022-04-25   
667-755 A Pikesville MD BLTMMDCHX3Y  2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238      
667-755 0 Pikesville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-01   
667-755 1 Pikesville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-01   
667-755 2 Pikesville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-01   
667-755 3 Pikesville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-01   
667-755 4 Pikesville MD   876D ONVOY, LLC - MD 238   2022-10-16   
667-755 5 Pikesville MD   2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238   2021-11-29   
667-755 6 Pikesville MD   624H ONVOY SPECTRUM, LLC 238   2022-02-07   
667-755 7 Pikesville MD   624H ONVOY SPECTRUM, LLC 238   2022-02-07   
667-755 8 Pikesville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-01   
667-755 9 Pikesville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-01   
667-758 A Silver Run MD BLTQMD01AMD  965H FRACTEL, LLC 238      
667-758 0 Silver Run MD   624H ONVOY SPECTRUM, LLC 238   2022-03-06   
667-758 1 Silver Run MD   624H ONVOY SPECTRUM, LLC 238   2022-03-06   
667-758 2 Silver Run MD   876D ONVOY, LLC - MD 238   2021-07-12   
667-758 3 Silver Run MD   876D ONVOY, LLC - MD 238   2021-07-12   
667-758 4 Silver Run MD   624H ONVOY SPECTRUM, LLC 238   2021-05-23   
667-758 6 Silver Run MD   965H FRACTEL, LLC 238   2020-09-12   
667-758 8 Silver Run MD   876D ONVOY, LLC - MD 238   2021-03-04   
667-758 9 Silver Run MD   145J TERRA NOVA TELECOM INC. 238   2025-07-21   
667-766 A Stevensville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-766 1 Stevensville MD   318J COMCAST IP PHONE, LLC 242   2023-12-31   
667-766 2 Stevensville MD   624H ONVOY SPECTRUM, LLC 242   2022-02-03   
667-766 3 Stevensville MD   624H ONVOY SPECTRUM, LLC 242   2022-02-03   
667-766 4 Stevensville MD   516J TON80 COMMUNICATIONS, LLC 242   2022-04-04   
667-766 6 Stevensville MD   876D ONVOY, LLC - MD 242   2021-07-12   
667-766 7 Stevensville MD   876D ONVOY, LLC - MD 242   2021-05-17   
667-766 8 Stevensville MD   624H ONVOY SPECTRUM, LLC 242   2021-05-27   
667-766 9 Stevensville MD   568G PEERLESS NETWORK OF MARYLAND, LLC 242   2024-03-22   
667-767 A St Michaels MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-767 0 St Michaels MD   876D ONVOY, LLC - MD 242   2021-05-18   
667-767 1 St Michaels MD   624H ONVOY SPECTRUM, LLC 242   2022-03-14   
667-767 2 St Michaels MD   624H ONVOY SPECTRUM, LLC 242   2021-05-27   
667-767 3 St Michaels MD   876D ONVOY, LLC - MD 242   2021-09-25   
667-767 4 St Michaels MD   876D ONVOY, LLC - MD 242   2021-05-21   
667-767 5 St Michaels MD   876D ONVOY, LLC - MD 242   2021-05-21   
667-767 6 St Michaels MD   876D ONVOY, LLC - MD 242   2021-05-17   
667-767 7 St Michaels MD   073H TELNYX LLC 242   2023-05-19   
667-767 8 St Michaels MD   876D ONVOY, LLC - MD 242   2021-05-18   
667-767 9 St Michaels MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2022-11-18   
667-770 A Baltimore MD BLTMMD915MD  691H AIRUS, INC. - MD 238      
667-770 0 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-11-09   
667-770 1 Baltimore MD   691H AIRUS, INC. - MD 238   2015-09-21   
667-770 2 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-11-09   
667-770 3 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-11-09   
667-770 4 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-11-09   
667-770 5 Baltimore MD   321J HD CARRIER LLC 238   2020-05-02   
667-770 6 Baltimore MD   876D ONVOY, LLC - MD 238   2019-06-13   
667-770 7 Baltimore MD   876D ONVOY, LLC - MD 238   2019-06-13   
667-770 8 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-11-09   
667-770 9 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-11-09   
667-771 A Baltimore MD BLTMMDCHYMD  530H WIDE VOICE, LLC - MD 238      
667-771 0 Baltimore MD   820C INTRADO COMMUNICATIONS, LLC 238   2016-08-20   
667-771 1 Baltimore MD   530H WIDE VOICE, LLC - MD 238   2016-02-04   
667-771 2 Baltimore MD   551G NUSO, LLC 238   2016-08-31   
667-771 3 Baltimore MD   551G NUSO, LLC 238   2016-08-31   
667-771 4 Baltimore MD   551G NUSO, LLC 238   2016-08-31   
667-771 5 Baltimore MD   551G NUSO, LLC 238   2016-08-31   
667-771 6 Baltimore MD   551G NUSO, LLC 238   2016-08-31   
667-771 7 Baltimore MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2016-11-05   
667-771 8 Baltimore MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2016-11-05   
667-771 9 Baltimore MD   515J IP HORIZON LLC 238   2016-05-31   
667-772 A Sparks-Glencoe MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
667-772 0 Sparks-Glencoe MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2024-02-23   
667-772 1 Sparks-Glencoe MD   876D ONVOY, LLC - MD 238   2022-10-16   
667-772 2 Sparks-Glencoe MD   876D ONVOY, LLC - MD 238   2021-07-12   
667-772 3 Sparks-Glencoe MD   876D ONVOY, LLC - MD 238   2021-07-12   
667-772 4 Sparks-Glencoe MD   624H ONVOY SPECTRUM, LLC 238   2022-03-10   

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

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