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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
443-819 0 Bel Air MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-06-05   
443-819 1 Bel Air MD   876D ONVOY, LLC - MD 238   2015-07-30   
443-819 2 Bel Air MD   876D ONVOY, LLC - MD 238   2015-07-30   
443-819 3 Bel Air MD   318J COMCAST IP PHONE, LLC 238   2016-10-10   
443-819 4 Bel Air MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-08-22   
443-819 5 Bel Air MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-12-12   
443-819 6 Bel Air MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-10-09   
443-819 7 Bel Air MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-10-09   
443-819 8 Bel Air MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-03-21   
443-819 9 Bel Air MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-03-21   
443-820 A Elkridge MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-820 0 Elkridge MD   829J PAETEC ITEL, LLC 238      
443-820 1 Elkridge MD   829J PAETEC ITEL, LLC 238      
443-820 2 Elkridge MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2009-07-28   
443-820 3 Elkridge MD   318J COMCAST IP PHONE, LLC 238   2007-01-19   
443-820 4 Elkridge MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2008-10-01   
443-820 5 Elkridge MD   5562 METROPCS, INC. 238   2010-11-11   
443-820 6 Elkridge MD   5562 METROPCS, INC. 238   2010-11-11   
443-820 7 Elkridge MD   5562 METROPCS, INC. 238   2010-11-11   
443-820 8 Elkridge MD   5562 METROPCS, INC. 238   2010-12-27   
443-820 9 Elkridge MD   829J PAETEC ITEL, LLC 238      
443-821 A Westminster MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-821 0 Westminster MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-28   
443-821 1 Westminster MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-10-11   
443-821 2 Westminster MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-10-27   
443-821 3 Westminster MD   318J COMCAST IP PHONE, LLC 238   2010-12-10   
443-821 4 Westminster MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-821 5 Westminster MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-821 6 Westminster MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-09-27   
443-821 7 Westminster MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-06-02   
443-821 8 Westminster MD   5562 METROPCS, INC. 238   2010-09-06   
443-821 9 Westminster MD   5562 METROPCS, INC. 238   2010-09-06   
443-822 A Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-822 0 Annapolis MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-822 1 Annapolis MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-822 2 Annapolis MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-01-03   
443-822 3 Annapolis MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-822 4 Annapolis MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-822 5 Annapolis MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-822 6 Annapolis MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-822 7 Annapolis MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-822 8 Annapolis MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-822 9 Annapolis MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-823 A Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-823 0 Towson MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-09-09   
443-823 1 Towson MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-11-02   
443-823 2 Towson MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-11-27   
443-823 3 Towson MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-11-27   
443-823 4 Towson MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-11-27   
443-823 5 Towson MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-11-27   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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