Local Calling Guide

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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
443-647 5 New Windsor MD   073H TELNYX LLC 238   2017-04-26   
443-647 6 New Windsor MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-647 7 New Windsor MD   7575 CENTURYLINK COMMUNICATIONS LLC 238   2014-06-12   
443-647 8 New Windsor MD   876D ONVOY, LLC - MD 238   2016-03-17   
443-647 9 New Windsor MD   876D ONVOY, LLC - MD 238   2016-03-17   
443-648 A Essex MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-648 0 Essex MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2018-12-09   
443-648 1 Essex MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2019-08-23   
443-648 2 Essex MD   2589 US LEC OF MARYLAND, INC. 238   2007-06-15   
443-648 3 Essex MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-07-02   
443-648 4 Essex MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-648 5 Essex MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-02-13   
443-648 6 Essex MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-04-12   
443-648 7 Essex MD   7575 CENTURYLINK COMMUNICATIONS LLC 238   2014-06-25   
443-648 8 Essex MD   082H LOCAL ACCESS LLC - MD 238   2013-09-06   
443-648 9 Essex MD   876D ONVOY, LLC - MD 238   2012-10-07   
443-649 A Sparrows Point MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238      
443-649 0 Sparrows Point MD   2589 US LEC OF MARYLAND, INC. 238      
443-649 1 Sparrows Point MD   2589 US LEC OF MARYLAND, INC. 238      
443-649 2 Sparrows Point MD   2589 US LEC OF MARYLAND, INC. 238      
443-649 3 Sparrows Point MD   2589 US LEC OF MARYLAND, INC. 238      
443-649 4 Sparrows Point MD   5562 METRO PCS, INC. 238   2016-11-25   
443-649 5 Sparrows Point MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2014-11-06   
443-649 6 Sparrows Point MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-07-31   
443-649 7 Sparrows Point MD   5562 METRO PCS, INC. 238   2018-04-16   
443-649 8 Sparrows Point MD   082H LOCAL ACCESS LLC - MD 238   2016-01-04   
443-649 9 Sparrows Point MD   2589 US LEC OF MARYLAND, INC. 238      
443-650 A Reisterstown MD   4773 XO MARYLAND, LLC 238      
443-650 0 Reisterstown MD   4773 XO MARYLAND, LLC 238      
443-650 1 Reisterstown MD   4773 XO MARYLAND, LLC 238      
443-650 2 Reisterstown MD   082H LOCAL ACCESS LLC - MD 238   2016-10-14   
443-650 3 Reisterstown MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2016-09-08   
443-650 5 Reisterstown MD   2589 US LEC OF MARYLAND, INC. 238   2003-03-04   
443-650 6 Reisterstown MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-05-01   
443-650 7 Reisterstown MD   073H TELNYX LLC 238   2017-04-25   
443-650 8 Reisterstown MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
443-650 9 Reisterstown MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-651 A Baltimore MD CTVLMDBACM3  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-09-05   
443-651 0 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-09-05   
443-651 1 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2011-09-07   
443-651 2 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2011-09-07   
443-651 3 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2011-09-07   
443-651 4 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2011-09-07   
443-651 5 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2011-09-07   
443-651 6 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2011-09-07   
443-651 7 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2011-09-07   
443-651 8 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2011-09-07   
443-651 9 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-05-20   
443-652 A Towson MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-652 0 Towson MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-07-14   

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Last updated: Wed, 01 Apr 2020 02:09:16 UTC

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