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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
443-420 4 Ellicott City MD   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-420 5 Ellicott City MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-420 6 Ellicott City MD   876D ONVOY, LLC - MD 238   2016-04-08   
443-420 7 Ellicott City MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
443-420 8 Ellicott City MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
443-420 9 Ellicott City MD   876D ONVOY, LLC - MD 238   2016-04-08   
443-421 A Fork MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-422 A Glen Burnie MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-422 0 Glen Burnie MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-05-26   
443-422 1 Glen Burnie MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-05-10   
443-422 2 Glen Burnie MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-04-29   
443-422 3 Glen Burnie MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-06-26   
443-422 4 Glen Burnie MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-05   
443-422 5 Glen Burnie MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-05   
443-422 6 Glen Burnie MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-11-25   
443-422 7 Glen Burnie MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2011-04-03   
443-422 8 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2010-12-03   
443-422 9 Glen Burnie MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-08-18   
443-423 A Baltimore MD BLTMMDCHXZY  8864 BROADWING COMMUNICATIONS. LLC - MD 238      
443-423 0 Baltimore MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2005-10-12   
443-423 1 Baltimore MD   8864 BROADWING COMMUNICATIONS. LLC - MD 238      
443-423 2 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2005-01-27   
443-423 3 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2005-01-27   
443-423 4 Baltimore MD   9212 VERIZON MARYLAND, INC. 238   2003-09-06   
443-423 5 Baltimore MD   9212 VERIZON MARYLAND, INC. 238   2003-09-06   
443-423 6 Baltimore MD   9212 VERIZON MARYLAND, INC. 238   2003-09-06   
443-423 7 Baltimore MD   9212 VERIZON MARYLAND, INC. 238   2003-09-06   
443-423 8 Baltimore MD   9212 VERIZON MARYLAND, INC. 238   2004-06-04   
443-423 9 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2005-01-27   
443-424 A Cardiff MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-424 0 Cardiff MD   420C ARMSTRONG TELECOMMUNICATIONS, INC. - MD 238   2008-09-08   
443-424 1 Cardiff MD   2589 US LEC OF MARYLAND, INC. 238   2004-02-02   
443-424 2 Cardiff MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
443-424 3 Cardiff MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-08-15   
443-424 4 Cardiff MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-03-07   
443-424 5 Cardiff MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-02-28   
443-424 6 Cardiff MD   876D ONVOY, LLC - MD 238   2012-10-07   
443-424 7 Cardiff MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-06-02   
443-424 8 Cardiff MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-25   
443-424 9 Cardiff MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-425 A Parkville MD BLTMMDCHDS7  7421 AT&T LOCAL 238      
443-425 0 Parkville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-05-21   
443-425 1 Parkville MD   7421 AT&T LOCAL 238      
443-425 2 Parkville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-05-21   
443-425 3 Parkville MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2008-10-01   
443-425 4 Parkville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-17   
443-425 5 Parkville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-17   
443-425 6 Parkville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-17   
443-425 7 Parkville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-17   
443-425 8 Parkville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-17   

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

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