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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
443-670 7 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-03-19   
443-670 8 Catonsville MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-670 9 Catonsville MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-671 A New Windsor MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-671 0 New Windsor MD BLTMMD91DS1  2593 CORE COMMUNICATIONS, INC. - MD 238   2004-03-29   
443-671 1 New Windsor MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-03-05   
443-671 2 New Windsor MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-09-02   
443-671 3 New Windsor MD BLTMMDCHXMX  506J TWILIO INTERNATIONAL INC 238   2020-12-26   
443-671 4 New Windsor MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-07-31   
443-671 5 New Windsor MD BLTMMDCHW29  4716 PAETEC COMMUNICATIONS, INC. - MD 238   2006-04-07   
443-671 6 New Windsor MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2007-01-19   
443-671 7 New Windsor MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-11-18   
443-671 8 New Windsor MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-07-31   
443-671 9 New Windsor MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-672 A Parkton MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-672 0 Parkton MD BLTMMD91DS1  2593 CORE COMMUNICATIONS, INC. - MD 238   2004-04-02   
443-672 1 Parkton MD CLMAMDJTDSA  2589 US LEC OF MARYLAND, INC. 238   2004-01-31   
443-672 2 Parkton MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-02-25   
443-672 3 Parkton MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC. - MD 238   2019-03-29   
443-672 4 Parkton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2019-02-19   
443-672 5 Parkton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2019-02-19   
443-672 6 Parkton MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-672 7 Parkton MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-672 8 Parkton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-10-12   
443-672 9 Parkton MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-673 A Brooklyn Park-Linthicum MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-673 0 Brooklyn Park-Linthicum MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-673 2 Brooklyn Park-Linthicum MD BLTMMDCHFMD  5562 METRO PCS, INC. 238   2014-02-28   
443-673 3 Brooklyn Park-Linthicum MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-673 4 Brooklyn Park-Linthicum MD BLTMMDCHFMD  5562 METRO PCS, INC. 238   2014-02-25   
443-673 6 Brooklyn Park-Linthicum MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-673 7 Brooklyn Park-Linthicum MD BLTMMDCHFMD  5562 METRO PCS, INC. 238   2014-04-30   
443-673 9 Brooklyn Park-Linthicum MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-11-30   
443-674 A North East MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-674 0 North East MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-05-26   
443-674 1 North East MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238   2004-02-05   
443-674 2 North East MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2019-10-18   
443-674 3 North East MD BLTMMDCHFMD  5562 METRO PCS, INC. 238   2019-01-22   
443-674 4 North East MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-674 5 North East MD BLTMMD91DS1  2593 CORE COMMUNICATIONS, INC. - MD 238   2004-04-02   
443-674 6 North East MD BLTMMDCHFMD  5562 METRO PCS, INC. 238   2017-04-04   
443-674 7 North East MD BLTMMDCHFMD  5562 METRO PCS, INC. 238   2017-08-13   
443-674 8 North East MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2005-07-25   
443-674 9 North East MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-675 A Randallstown MD BLARMDBL1MD  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 238      
443-675 0 Randallstown MD BLARMDBL1MD  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 238      
443-675 1 Randallstown MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2020-06-11   
443-675 2 Randallstown MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2020-09-19   
443-675 3 Randallstown MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-675 4 Randallstown MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   

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Last updated: Sun, 28 Feb 2021 19:06:05 UTC

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