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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
443-417 A Fallston MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-417 0 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-11-03   
443-417 1 Fallston MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-08-13   
443-417 2 Fallston MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238   2003-04-01   
443-417 3 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-11-03   
443-417 4 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-08-19   
443-417 5 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-08-03   
443-417 6 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-03-08   
443-417 7 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-01-08   
443-417 8 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-07-05   
443-417 9 Fallston MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-418 A Baltimore MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238      
443-419 A Glenwood MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-419 0 Glenwood MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-419 1 Glenwood MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238   2004-03-09   
443-419 2 Glenwood MD BLTMMD91DS1  2593 CORE COMMUNICATIONS, INC. - MD 238   2004-03-29   
443-419 3 Glenwood MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238   2006-04-24   
443-419 4 Glenwood MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-419 5 Glenwood MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2015-04-20   
443-419 6 Glenwood MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-04-04   
443-419 7 Glenwood MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-04-04   
443-419 8 Glenwood MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-11   
443-419 9 Glenwood MD BLTQMD010MD  082H LOCAL ACCESS LLC - MD 238   2015-03-21   
443-420 A Ellicott City MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-420 0 Ellicott City MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-420 1 Ellicott City MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-420 2 Ellicott City MD BLTMMDCHFMD  5562 METRO PCS, INC. 238   2018-10-05   
443-420 3 Ellicott City MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2019-03-20   
443-420 4 Ellicott City MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-420 5 Ellicott City MD BLTMMDCHXMX  506J TWILIO INTERNATIONAL INC 238   2020-12-26   
443-420 6 Ellicott City MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-04-08   
443-420 7 Ellicott City MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
443-420 8 Ellicott City MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
443-420 9 Ellicott City MD BLTMMDCH42Z  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 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-422 0 Glen Burnie MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-05-26   
443-422 1 Glen Burnie MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-05-10   
443-422 2 Glen Burnie MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-04-29   
443-422 3 Glen Burnie MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-06-26   
443-422 4 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-05   
443-422 5 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-05   
443-422 6 Glen Burnie MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-11-25   
443-422 7 Glen Burnie MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2011-04-03   
443-422 8 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2010-12-03   
443-422 9 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-08-18   
443-423 A Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-423 0 Baltimore MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2005-10-12   
443-423 1 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-423 2 Baltimore MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2005-01-27   

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

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