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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
443-882 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-03-18   
443-882 9 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-03-18   
443-883 A Glen Burnie MD BLTMMDCHCMD  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-883 0 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-08-07   
443-883 1 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-10-02   
443-883 2 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-12-09   
443-883 3 Glen Burnie MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2001-12-31   
443-883 4 Glen Burnie MD BLTMMDCHCMD  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-883 5 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-11-02   
443-883 6 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-01-02   
443-883 7 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-12-09   
443-883 8 Glen Burnie MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2002-04-27   
443-883 9 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-07-14   
443-884 A Baltimore MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-884 0 Baltimore MD   829J PAETEC ITEL, LLC 238      
443-884 1 Baltimore MD   829J PAETEC ITEL, LLC 238      
443-884 2 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-07-04   
443-884 3 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-07-04   
443-884 4 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2020-05-13   
443-884 5 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-07-04   
443-884 6 Baltimore MD   829J PAETEC ITEL, LLC 238      
443-884 7 Baltimore MD   829J PAETEC ITEL, LLC 238      
443-884 8 Baltimore MD   829J PAETEC ITEL, LLC 238      
443-884 9 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-07-04   
443-885 A Baltimore MD BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      
443-885 0 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-14   
443-885 1 Baltimore MD BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      
443-885 2 Baltimore MD BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      
443-885 3 Baltimore MD BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      
443-885 4 Baltimore MD BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      
443-885 5 Baltimore MD BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      
443-885 6 Baltimore MD BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      
443-885 7 Baltimore MD BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      
443-885 8 Baltimore MD BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      
443-885 9 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2015-04-02   
443-886 A Cockeysville MD CLMAMDNIDS1  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-886 0 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-12-26   
443-886 1 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-12-26   
443-886 2 Cockeysville MD CLMAMDNIDS1  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-886 3 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2013-02-11   
443-886 4 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-17   
443-886 5 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-10-05   
443-886 6 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-07-21   
443-886 7 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-10-05   
443-886 8 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-09-18   
443-886 9 Cockeysville MD BLTMMDCHCMD  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-887 A Catonsville MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-887 0 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 1 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 2 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 3 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 4 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 5 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 6 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 7 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 8 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 9 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-888 A Princess Anne MD   829J PAETEC ITEL, LLC 242   2025-04-01   
443-888 0 Princess Anne MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-14   
443-888 1 Princess Anne MD SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
443-888 2 Princess Anne MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-03-10   
443-888 3 Princess Anne MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-03-10   
443-888 4 Princess Anne MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242   2021-03-08   
443-888 5 Princess Anne MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2023-10-22   
443-888 6 Princess Anne MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242   2014-10-02   
443-888 7 Princess Anne MD SLBRMDSBXUX  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2016-04-08   
443-888 8 Princess Anne MD   829J PAETEC ITEL, LLC 242   2011-03-05   
443-888 9 Princess Anne MD SLBRMDSC9MD  281E YMAX COMMUNICATIONS CORP. - MD 242   2011-04-07   
443-889 A Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-889 0 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-889 1 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-889 2 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-889 3 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-889 4 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-889 5 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-889 6 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-889 7 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-889 8 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-09-15   
443-889 9 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-890 A Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-890 0 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-07   
443-890 1 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-07   
443-890 2 Baltimore MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2024-10-23   
443-890 3 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-10   
443-890 4 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-10   
443-890 5 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-10   
443-890 6 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-10   
443-890 7 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-10   
443-890 8 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-10   
443-890 9 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-10   
443-891 A Glen Burnie MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-891 0 Glen Burnie MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-891 1 Glen Burnie MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-891 2 Glen Burnie MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-891 3 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2003-11-01   
443-891 4 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-10-03   
443-891 5 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-04-12   
443-891 6 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-04-12   
443-891 7 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-04-12   
443-891 8 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-04-12   

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Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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