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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
443-567 6 Bel Air MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-08-04   
443-567 7 Bel Air MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2012-04-17   
443-567 8 Bel Air MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2004-03-03   
443-567 9 Bel Air MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2004-03-03   
443-568 A Arbutus MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-568 0 Arbutus MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-568 1 Arbutus MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-568 2 Arbutus MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-568 3 Arbutus MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-07   
443-568 4 Arbutus MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-568 5 Arbutus MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-568 6 Arbutus MD BLTQMD013MD  939H COMMIO, LLC 238   2021-06-12   
443-568 7 Arbutus MD BLTMMDCHXVX  321J HD CARRIER LLC 238   2020-05-01   
443-568 8 Arbutus MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2016-09-08   
443-568 9 Arbutus MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-569 A Annapolis MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-569 0 Annapolis MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2004-12-13   
443-569 1 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-06-02   
443-569 2 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-08-01   
443-569 3 Annapolis MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-06   
443-569 4 Annapolis MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-569 5 Annapolis MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-06   
443-569 6 Annapolis MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-06   
443-569 7 Annapolis MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-06   
443-569 8 Annapolis MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-05-06   
443-569 9 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-03-04   
443-570 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-571 A Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-571 0 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-02-03   
443-571 1 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-02-03   
443-571 2 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-02-03   
443-571 3 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-02-03   
443-571 4 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-02-03   
443-571 5 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-02-03   
443-571 6 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-02-03   
443-571 7 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-02-03   
443-571 8 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-02-03   
443-571 9 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-02-03   
443-572 A Glen Burnie MD GLBRMDGLRP0  9212 VERIZON MARYLAND, INC. 238      
443-572 0 Glen Burnie MD GLBRMDGLRP0  9212 VERIZON MARYLAND, INC. 238      
443-572 1 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-01-15   
443-572 2 Glen Burnie MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2016-10-01   
443-572 3 Glen Burnie MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-09-04   
443-572 4 Glen Burnie MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-02-29   
443-572 5 Glen Burnie MD GLBRMDGLRP0  9212 VERIZON MARYLAND, INC. 238      
443-572 6 Glen Burnie MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2005-07-02   
443-572 7 Glen Burnie MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
443-572 8 Glen Burnie MD GLBRMDGLRP0  9212 VERIZON MARYLAND, INC. 238      
443-572 9 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-08-17   
443-573 A Baltimore MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-573 0 Baltimore MD   829J PAETEC ITEL, LLC 238      
443-573 1 Baltimore MD   829J PAETEC ITEL, LLC 238      
443-573 2 Baltimore MD   829J PAETEC ITEL, LLC 238      
443-573 3 Baltimore MD   829J PAETEC ITEL, LLC 238      
443-573 4 Baltimore MD   829J PAETEC ITEL, LLC 238      
443-573 5 Baltimore MD   829J PAETEC ITEL, LLC 238   2005-08-30   
443-573 6 Baltimore MD   829J PAETEC ITEL, LLC 238      
443-573 7 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-04-13   
443-573 8 Baltimore MD   829J PAETEC ITEL, LLC 238      
443-573 9 Baltimore MD   829J PAETEC ITEL, LLC 238      
443-574 A Ellicott City MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-574 0 Ellicott City MD   829J PAETEC ITEL, LLC 238      
443-574 1 Ellicott City MD   829J PAETEC ITEL, LLC 238      
443-574 2 Ellicott City MD   829J PAETEC ITEL, LLC 238      
443-574 3 Ellicott City MD   829J PAETEC ITEL, LLC 238      
443-574 4 Ellicott City MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-28   
443-574 5 Ellicott City MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-02-26   
443-574 6 Ellicott City MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-08-19   
443-574 7 Ellicott City MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-08-28   
443-574 8 Ellicott City MD   829J PAETEC ITEL, LLC 238   2003-05-25   
443-574 9 Ellicott City MD   829J PAETEC ITEL, LLC 238      
443-575 A Arbutus MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-575 0 Arbutus MD   829J PAETEC ITEL, LLC 238      
443-575 1 Arbutus MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-02-24   
443-575 2 Arbutus MD   829J PAETEC ITEL, LLC 238      
443-575 3 Arbutus MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-02-24   
443-575 4 Arbutus MD   829J PAETEC ITEL, LLC 238   2006-11-09   
443-575 5 Arbutus MD   829J PAETEC ITEL, LLC 238      
443-575 6 Arbutus MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-04-10   
443-575 7 Arbutus MD   829J PAETEC ITEL, LLC 238   2011-12-20   
443-575 8 Arbutus MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-02-24   
443-575 9 Arbutus MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-05-23   
443-576 A Randallstown MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-576 0 Randallstown MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-576 1 Randallstown MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-576 2 Randallstown MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-14   
443-576 3 Randallstown MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2008-10-01   
443-576 4 Randallstown MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-576 5 Randallstown MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-14   
443-576 6 Randallstown MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-06-26   
443-576 8 Randallstown MD   515J IP HORIZON LLC 238   2016-01-04   
443-576 9 Randallstown MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-25   
443-577 A Glen Burnie MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-577 0 Glen Burnie MD   829J PAETEC ITEL, LLC 238      
443-577 1 Glen Burnie MD   829J PAETEC ITEL, LLC 238      
443-577 2 Glen Burnie MD   829J PAETEC ITEL, LLC 238      
443-577 3 Glen Burnie MD   829J PAETEC ITEL, LLC 238      
443-577 4 Glen Burnie MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2003-02-20   
443-577 5 Glen Burnie MD   829J PAETEC ITEL, LLC 238   2005-01-08   
443-577 6 Glen Burnie MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-11-24   

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

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