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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
443-932 3 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-12-31   
443-932 4 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-932 5 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-932 6 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-932 7 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-932 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-932 9 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-933 A Cockeysville MD CLMAMDNIDS1  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-933 0 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2015-11-28   
443-933 1 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-10-07   
443-933 2 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-10-07   
443-933 3 Cockeysville MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-05   
443-933 4 Cockeysville MD CLMAMDNIDS1  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2004-06-11   
443-933 5 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-10-07   
443-933 6 Cockeysville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-30   
443-933 7 Cockeysville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-30   
443-933 8 Cockeysville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-12-31   
443-933 9 Cockeysville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-12-31   
443-934 A Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-934 0 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-02-01   
443-934 1 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-03-03   
443-934 2 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-03-03   
443-934 3 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-03-03   
443-934 4 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-03-03   
443-934 5 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-03-03   
443-934 6 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-03-03   
443-934 7 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-03-03   
443-934 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-04-08   
443-934 9 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-04-08   
443-935 A Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-935 0 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-09-21   
443-935 1 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-09-21   
443-935 2 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-09-25   
443-935 3 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-09-25   
443-935 4 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-09-25   
443-935 5 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-09-23   
443-935 6 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-09-23   
443-935 7 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-12-12   
443-935 8 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2007-02-20   
443-935 9 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2007-02-20   
443-936 A Elkridge MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-936 0 Elkridge MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-25   
443-936 1 Elkridge MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2021-12-02   
443-936 2 Elkridge MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-28   
443-936 3 Elkridge MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-30   
443-936 4 Elkridge MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-30   
443-936 5 Elkridge MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2018-12-03   
443-936 6 Elkridge MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2018-10-18   
443-936 7 Elkridge MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2018-04-02   
443-936 8 Elkridge MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-10-20   
443-936 9 Elkridge MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-04-24   
443-937 A Union Bridge MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-937 0 Union Bridge MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-04-02   
443-937 1 Union Bridge MD   829J PAETEC ITEL, LLC 238   2004-02-05   
443-937 2 Union Bridge MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-08   
443-937 3 Union Bridge MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-01-09   
443-937 4 Union Bridge MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-937 5 Union Bridge MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-04-04   
443-937 6 Union Bridge MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-01-19   
443-937 7 Union Bridge MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-937 8 Union Bridge MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-937 9 Union Bridge MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-938 A Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-938 0 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-10-06   
443-938 1 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-10-06   
443-938 2 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-10-06   
443-938 3 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-10-06   
443-938 4 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-11-11   
443-938 5 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-11-11   
443-938 6 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-11-11   
443-938 7 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-11-11   
443-938 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-11-11   
443-938 9 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2007-11-07   
443-939 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-939 0 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-939 1 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-939 2 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-08-09   
443-939 3 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-01-11   
443-939 4 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-05-06   
443-939 5 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-05-06   
443-939 6 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-05-06   
443-939 7 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-05-27   
443-939 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-05-27   
443-939 9 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-940 A Pikesville MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-940 0 Pikesville MD   829J PAETEC ITEL, LLC 238      
443-940 1 Pikesville MD   829J PAETEC ITEL, LLC 238      
443-940 2 Pikesville MD   829J PAETEC ITEL, LLC 238      
443-940 3 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-08-15   
443-940 4 Pikesville MD   829J PAETEC ITEL, LLC 238      
443-940 5 Pikesville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-09-23   
443-940 6 Pikesville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-09-23   
443-940 7 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-10-03   
443-940 8 Pikesville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-09-12   
443-940 9 Pikesville MD   829J PAETEC ITEL, LLC 238      
443-941 A Elkton MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-941 0 Elkton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-07   
443-941 1 Elkton MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-11   
443-941 2 Elkton MD BLTMMDCH3MD  228C IDT AMERICA, CORP. - MD 238   2012-01-08   
443-941 3 Elkton MD BLTMMDCHX7X  073H TELNYX LLC 238   2021-03-04   

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Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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