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
443-547 A Westminster MD WDLWMDEMCM3  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2009-07-06   
443-547 0 Westminster MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2009-07-06   
443-547 1 Westminster MD   6664 SPRINT SPECTRUM L.P. 238   2009-09-09   
443-547 2 Westminster MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2009-10-02   
443-547 3 Westminster MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-01-16   
443-547 4 Westminster MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-05-03   
443-547 5 Westminster MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-06-15   
443-547 6 Westminster MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-02-26   
443-547 7 Westminster MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-03-13   
443-547 8 Westminster MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-05-02   
443-547 9 Westminster MD   6664 SPRINT SPECTRUM L.P. 238   2010-07-19   
443-548 A Pikesville MD   4773 XO MARYLAND, LLC 238      
443-548 0 Pikesville MD   4773 XO MARYLAND, LLC 238      
443-548 1 Pikesville MD   4773 XO MARYLAND, LLC 238      
443-548 2 Pikesville MD   4773 XO MARYLAND, LLC 238      
443-548 3 Pikesville MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2014-11-07   
443-548 4 Pikesville MD   4773 XO MARYLAND, LLC 238      
443-548 5 Pikesville MD   4773 XO MARYLAND, LLC 238      
443-548 6 Pikesville MD   4773 XO MARYLAND, LLC 238      
443-548 7 Pikesville MD   4773 XO MARYLAND, LLC 238      
443-548 8 Pikesville MD   4773 XO MARYLAND, LLC 238      
443-548 9 Pikesville MD   4773 XO MARYLAND, LLC 238      
443-549 A Dundalk MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238      
443-549 0 Dundalk MD   2589 US LEC OF MARYLAND, INC. 238      
443-549 1 Dundalk MD   2589 US LEC OF MARYLAND, INC. 238      
443-549 2 Dundalk MD   2589 US LEC OF MARYLAND, INC. 238      
443-549 3 Dundalk MD   2589 US LEC OF MARYLAND, INC. 238      
443-549 4 Dundalk MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2015-05-13   
443-549 5 Dundalk MD   964H BARR TELL USA, INC. 238   2016-12-17   
443-549 6 Dundalk MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-549 7 Dundalk MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-549 8 Dundalk MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-549 9 Dundalk MD   2589 US LEC OF MARYLAND, INC. 238      
443-550 A North Beach MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-550 0 North Beach MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-550 1 North Beach MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-10-14   
443-550 2 North Beach MD   2589 US LEC OF MARYLAND, INC. 238   2004-02-05   
443-550 3 North Beach MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2005-03-10   
443-550 4 North Beach MD   2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238   2003-12-25   
443-550 5 North Beach MD   9170 BROADVIEW NETWORKS, INC. - MD 238   2008-01-03   
443-550 6 North Beach MD   9212 VERIZON MARYLAND, INC. 238   2004-10-01   
443-550 7 North Beach MD   876D ONVOY, LLC - MD 238   2012-10-07   
443-550 8 North Beach MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2004-02-07   
443-550 9 North Beach MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-07-15   
443-551 A Woodlawn MD BLTMMDSNRS0  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-551 0 Woodlawn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-551 1 Woodlawn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-551 2 Woodlawn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-551 3 Woodlawn MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2013-05-12   
443-551 4 Woodlawn MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      

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Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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