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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
667-676 1 Willards MD   624H ONVOY SPECTRUM, LLC 242   2022-03-14   
667-676 2 Willards MD   624H ONVOY SPECTRUM, LLC 242   2022-03-14   
667-676 4 Willards MD   624H ONVOY SPECTRUM, LLC 242   2021-05-27   
667-676 6 Willards MD   876D ONVOY, LLC - MD 242   2020-11-21   
667-676 7 Willards MD   876D ONVOY, LLC - MD 242   2020-11-21   
667-676 8 Willards MD   876D ONVOY, LLC - MD 242   2021-07-12   
667-677 A Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-677 0 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-02-06   
667-677 1 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-02-06   
667-677 2 Baltimore MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-12   
667-677 3 Baltimore MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-12   
667-677 4 Baltimore MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-12   
667-677 5 Baltimore MD   876D ONVOY, LLC - MD 238   2015-06-09   
667-677 6 Baltimore MD   876D ONVOY, LLC - MD 238   2015-06-09   
667-677 7 Baltimore MD   876D ONVOY, LLC - MD 238   2015-06-09   
667-677 8 Baltimore MD   876D ONVOY, LLC - MD 238   2015-06-09   
667-677 9 Baltimore MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2016-11-05   
667-678 A Columbia MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-678 0 Columbia MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-10-16   
667-678 1 Columbia MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-10-16   
667-678 2 Columbia MD   876D ONVOY, LLC - MD 238   2021-10-15   
667-678 3 Columbia MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2021-10-24   
667-678 4 Columbia MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2021-10-24   
667-678 5 Columbia MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2021-10-24   
667-678 6 Columbia MD   939H COMMIO, LLC 238   2021-10-16   
667-678 7 Columbia MD   939H COMMIO, LLC 238   2021-10-16   
667-678 8 Columbia MD   939H COMMIO, LLC 238   2021-10-16   
667-678 9 Columbia MD   939H COMMIO, LLC 238   2021-10-16   
667-686 A Ellicott City MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
667-686 0 Ellicott City MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-12-06   
667-686 1 Ellicott City MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-12-06   
667-686 2 Ellicott City MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-12-06   
667-686 3 Ellicott City MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-12-06   
667-686 4 Ellicott City MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-12-06   
667-686 5 Ellicott City MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-12-06   
667-686 6 Ellicott City MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2018-12-07   
667-686 7 Ellicott City MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2019-02-08   
667-686 8 Ellicott City MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-06-16   
667-686 9 Ellicott City MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-05-11   
667-687 A Warwick MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-687 0 Warwick MD   939H COMMIO, LLC 242   2022-03-27   
667-687 4 Warwick MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2022-11-18   
667-687 6 Warwick MD   876D ONVOY, LLC - MD 242   2021-05-17   
667-687 7 Warwick MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2022-11-09   
667-687 8 Warwick MD   624H ONVOY SPECTRUM, LLC 242   2021-05-27   
667-688 A Parkville MD BLTQMD01AMD  965H FRACTEL, LLC 238      
667-688 0 Parkville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-01-01   
667-688 1 Parkville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2021-02-09   
667-688 2 Parkville MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2021-03-20   
667-688 3 Parkville MD   876D ONVOY, LLC - MD 238   2020-12-03   
667-688 4 Parkville MD   876D ONVOY, LLC - MD 238   2020-12-03   
667-688 5 Parkville MD   876D ONVOY, LLC - MD 238   2020-12-03   
667-688 6 Parkville MD   876D ONVOY, LLC - MD 238   2020-12-03   
667-688 7 Parkville MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2024-09-28   
667-688 8 Parkville MD   965H FRACTEL, LLC 238   2020-09-12   
667-688 9 Parkville MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-08-27   
667-693 A Vienna MD SLBRMD90BMD  516J TON80 COMMUNICATIONS, LLC 242      
667-693 7 Vienna MD   516J TON80 COMMUNICATIONS, LLC 242   2022-05-26   
667-701 A Elkridge MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
667-701 0 Elkridge MD   876D ONVOY, LLC - MD 238   2015-12-12   
667-701 1 Elkridge MD   876D ONVOY, LLC - MD 238   2016-01-29   
667-701 2 Elkridge MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-09-19   
667-701 3 Elkridge MD   876D ONVOY, LLC - MD 238   2016-03-11   
667-701 4 Elkridge MD   876D ONVOY, LLC - MD 238   2016-03-11   
667-701 5 Elkridge MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-04-18   
667-701 6 Elkridge MD   515J IP HORIZON LLC 238   2016-10-14   
667-701 7 Elkridge MD   964H BARR TELL USA, INC. 238   2016-12-17   
667-701 8 Elkridge MD   515J IP HORIZON LLC 238   2016-01-04   
667-701 9 Elkridge MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2015-12-03   
667-706 A Elkton MD BLTMMDCH40Z  6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 238      
667-706 0 Elkton MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-02   
667-706 1 Elkton MD   321J HD CARRIER LLC 238   2016-09-05   
667-706 2 Elkton MD   321J HD CARRIER LLC 238   2016-09-05   
667-706 3 Elkton MD   321J HD CARRIER LLC 238   2016-09-05   
667-706 4 Elkton MD   321J HD CARRIER LLC 238   2016-09-05   
667-706 5 Elkton MD   321J HD CARRIER LLC 238   2016-09-05   
667-706 6 Elkton MD   321J HD CARRIER LLC 238   2016-09-05   
667-706 7 Elkton MD   5562 METROPCS, INC. 238   2016-09-12   
667-706 8 Elkton MD   515J IP HORIZON LLC 238   2016-10-14   
667-706 9 Elkton MD   6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 238   2016-07-22   
667-722 A Glenwood MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
667-722 0 Glenwood MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-12-06   
667-722 1 Glenwood MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-12-06   
667-722 2 Glenwood MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   
667-722 3 Glenwood MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   
667-722 4 Glenwood MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   
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   

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Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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