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
443-548 5 Pikesville MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238      
443-548 6 Pikesville MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238      
443-548 7 Pikesville MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238      
443-548 8 Pikesville MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238      
443-548 9 Pikesville MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238      
443-549 A Dundalk MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238      
443-549 0 Dundalk MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238      
443-549 1 Dundalk MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238      
443-549 2 Dundalk MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238      
443-549 3 Dundalk MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238      
443-549 4 Dundalk MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2015-05-13   
443-549 5 Dundalk MD BLTQMD012MD  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 CLMAMDJTDS0  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 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-10-14   
443-550 2 North Beach MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238   2004-02-05   
443-550 3 North Beach MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2005-03-10   
443-550 4 North Beach MD BLTMMD91DS2  2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238   2003-12-25   
443-550 5 North Beach MD PIVLMDPKFMD  9170 BROADVIEW NETWORKS, INC. - MD 238   2008-01-03   
443-550 6 North Beach MD NRBHMDNEDS0  9212 VERIZON MARYLAND, INC. 238   2004-10-01   
443-550 7 North Beach MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-07   
443-550 8 North Beach MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2004-02-07   
443-550 9 North Beach MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-07-15   
443-551 A Woodlawn MD BLTMMDSN6MD  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 BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2013-05-12   
443-551 4 Woodlawn MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-551 5 Woodlawn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-551 6 Woodlawn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-551 7 Woodlawn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-551 8 Woodlawn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-551 9 Woodlawn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-552 A Baltimore MD BLTMMDMDDS0  9212 VERIZON MARYLAND, INC. 238      
443-552 0 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-16   
443-552 1 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2016-01-05   
443-552 2 Baltimore MD BLTMMDMDDS0  9212 VERIZON MARYLAND, INC. 238      
443-552 3 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-16   
443-552 4 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-16   
443-552 5 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-16   
443-552 6 Baltimore MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2005-04-20   
443-552 7 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-16   
443-552 8 Baltimore MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2005-04-20   
443-552 9 Baltimore MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2005-09-22   
443-553 A Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      

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

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