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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-582 4 Churchville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-582 5 Churchville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-582 6 Churchville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-30   
443-582 7 Churchville MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-05-28   
443-582 8 Churchville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2018-07-28   
443-582 9 Churchville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2018-05-31   
443-583 A Columbia MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-583 0 Columbia MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-03   
443-583 1 Columbia MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-583 2 Columbia MD BLTMMD91DS2  2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238   2016-01-31   
443-583 3 Columbia MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2014-03-31   
443-583 4 Columbia MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2014-03-31   
443-583 5 Columbia MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-09-01   
443-583 6 Columbia MD BLTMMDCHFMD  5562 METROPCS, INC. 238   2015-05-29   
443-583 7 Columbia MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2014-09-16   
443-583 8 Columbia MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-14   
443-583 9 Columbia MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-11-08   
443-584 A Crofton MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-584 0 Crofton MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-05-22   
443-584 1 Crofton MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-584 2 Crofton MD   145J TERRA NOVA TELECOM INC. 238   2024-02-15   
443-584 3 Crofton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2014-06-06   
443-584 4 Crofton MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2014-07-20   
443-584 5 Crofton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-21   
443-584 6 Crofton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-21   
443-584 7 Crofton MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-25   
443-584 8 Crofton MD   515J IP HORIZON LLC 238   2016-10-14   
443-584 9 Crofton MD   515J IP HORIZON LLC 238   2015-03-21   
443-585 A Darlington MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-585 0 Darlington MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-21   
443-585 1 Darlington MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-585 2 Darlington MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-21   
443-585 3 Darlington MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-04-10   
443-585 4 Darlington MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-04-10   
443-585 5 Darlington MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-11   
443-585 6 Darlington MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-26   
443-585 7 Darlington MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-12   
443-585 8 Darlington MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-09-19   
443-585 9 Darlington MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-09-19   
443-586 A Dundalk MD   2593 CORE COMMUNICATIONS, INC.- MD 238      
443-586 0 Dundalk MD   876D ONVOY, LLC - MD 238   2024-02-29   
443-586 1 Dundalk MD   876D ONVOY, LLC - MD 238   2024-02-29   
443-586 2 Dundalk MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-22   
443-586 3 Dundalk MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-22   
443-586 4 Dundalk MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-22   
443-586 5 Dundalk MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-11-24   
443-586 6 Dundalk MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-11-24   
443-586 7 Dundalk MD   876D ONVOY, LLC - MD 238   2024-02-29   
443-587 A Edgewood MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-587 0 Edgewood MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-30   

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Last updated: Wed, 07 Feb 2024 04:12:25 UTC

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