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
443-375 8 Hampstead MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238      
443-375 9 Hampstead MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238      
443-376 A Dundalk MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-376 0 Dundalk MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-376 1 Dundalk MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC. - MD 238   2019-04-30   
443-376 2 Dundalk MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC. - MD 238   2019-03-28   
443-376 3 Dundalk MD BLTMMDCHW29  4716 PAETEC COMMUNICATIONS, INC. - MD 238   2007-06-14   
443-376 4 Dundalk MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2019-05-10   
443-376 5 Dundalk MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2007-08-13   
443-376 6 Dundalk MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-03-16   
443-376 7 Dundalk MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-11-28   
443-376 8 Dundalk MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-07-02   
443-376 9 Dundalk MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC. - MD 238   2019-04-30   
443-377 A Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-377 0 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-08-06   
443-377 1 Towson MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-28   
443-377 2 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-377 3 Towson MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-01-02   
443-377 4 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-377 5 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-377 6 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-377 7 Towson MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-03-25   
443-377 8 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-05-02   
443-377 9 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-05-02   
443-378 A Baltimore MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238      
443-378 0 Baltimore MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2005-07-25   
443-378 1 Baltimore MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2005-07-25   
443-378 2 Baltimore MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2006-02-07   
443-378 3 Baltimore MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238   2006-02-10   
443-378 4 Baltimore MD BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238   2006-02-20   
443-378 5 Baltimore MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238   2004-09-23   
443-378 6 Baltimore MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2004-10-03   
443-378 7 Baltimore MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238   2004-09-23   
443-378 8 Baltimore MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238   2004-09-23   
443-378 9 Baltimore MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2004-10-03   
443-379 A Pikesville MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2021-01-13   
443-379 0 Pikesville MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2007-04-20   
443-379 1 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-08-11   
443-379 2 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2007-11-16   
443-379 3 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-10-11   
443-379 4 Pikesville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-05-20   
443-379 5 Pikesville MD BLTMMDCHW29  4716 PAETEC COMMUNICATIONS, INC. - MD 238   2011-01-20   
443-379 6 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-02-23   
443-379 7 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-10-11   
443-379 8 Pikesville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-05-20   
443-379 9 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-10-11   
443-380 A Woodlawn MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-380 0 Woodlawn MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
443-380 1 Woodlawn MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-09-04   
443-380 2 Woodlawn MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-02-10   

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

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