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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
443-721 7 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-06-14   
443-721 8 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-07-03   
443-721 9 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-07-03   
443-722 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-723 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2024-02-09   
443-723 0 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
443-723 1 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
443-723 2 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
443-723 3 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
443-723 4 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
443-723 5 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-04-13   
443-723 6 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
443-723 7 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-04-13   
443-723 8 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-04-13   
443-723 9 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
443-724 A Easton MD   829J PAETEC ITEL, LLC 242   2025-04-01   
443-724 0 Easton MD   829J PAETEC ITEL, LLC 242      
443-724 1 Easton MD   829J PAETEC ITEL, LLC 242      
443-724 2 Easton MD   829J PAETEC ITEL, LLC 242      
443-724 3 Easton MD   829J PAETEC ITEL, LLC 242      
443-724 4 Easton MD   829J PAETEC ITEL, LLC 242      
443-724 5 Easton MD   829J PAETEC ITEL, LLC 242      
443-724 6 Easton MD   829J PAETEC ITEL, LLC 242      
443-724 7 Easton MD SLBRMD90DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 242   2020-10-28   
443-724 8 Easton MD SLBRMD901MD  939H COMMIO, LLC 242   2022-08-21   
443-724 9 Easton MD   829J PAETEC ITEL, LLC 242      
443-725 A Parkville MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-725 0 Parkville MD   829J PAETEC ITEL, LLC 238      
443-725 1 Parkville MD   829J PAETEC ITEL, LLC 238      
443-725 2 Parkville MD   829J PAETEC ITEL, LLC 238      
443-725 3 Parkville MD   829J PAETEC ITEL, LLC 238      
443-725 4 Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-12-29   
443-725 5 Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-12-29   
443-725 6 Parkville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2019-02-08   
443-725 7 Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2016-12-15   
443-725 8 Parkville MD   829J PAETEC ITEL, LLC 238      
443-725 9 Parkville MD   829J PAETEC ITEL, LLC 238      
443-726 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2024-02-09   
443-726 0 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
443-726 1 Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-04-12   
443-726 2 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
443-726 3 Baltimore MD BLTQMD019MD  490J DISH WIRELESS, LLC 238   2024-05-13   
443-726 4 Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-05-11   
443-726 5 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
443-726 6 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
443-726 7 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
443-726 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
443-726 9 Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-05-11   
443-727 A Bishopville MD   829J PAETEC ITEL, LLC 242   2025-04-01   
443-727 0 Bishopville MD SLBRMD906MD  145J TERRA NOVA TELECOM INC. 242   2024-02-15   
443-727 1 Bishopville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-03-05   
443-727 2 Bishopville MD   829J PAETEC ITEL, LLC 242      
443-727 3 Bishopville MD SLBRMDSBXWX  861F MCC TELEPHONY OF THE MID-ATLANTIC, LLC - MD 242   2010-08-21   
443-727 4 Bishopville MD SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
443-727 5 Bishopville MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-06-17   
443-727 6 Bishopville MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-06-17   
443-727 7 Bishopville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-13   
443-727 8 Bishopville MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242   2007-08-08   
443-727 9 Bishopville MD   145J TERRA NOVA TELECOM INC. 242   2023-08-06   
443-728 A Berlin MD   829J PAETEC ITEL, LLC 242   2025-04-01   
443-728 0 Berlin MD SLBRMD906MD  145J TERRA NOVA TELECOM INC. 242   2024-02-15   
443-728 1 Berlin MD   829J PAETEC ITEL, LLC 242      
443-728 2 Berlin MD   829J PAETEC ITEL, LLC 242      
443-728 3 Berlin MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
443-728 4 Berlin MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
443-728 5 Berlin MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
443-728 6 Berlin MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
443-728 7 Berlin MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
443-728 8 Berlin MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
443-729 A Woodlawn MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-729 0 Woodlawn MD   829J PAETEC ITEL, LLC 238      
443-729 1 Woodlawn MD   829J PAETEC ITEL, LLC 238      
443-729 2 Woodlawn MD   829J PAETEC ITEL, LLC 238      
443-729 3 Woodlawn MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-25   
443-729 4 Woodlawn MD   829J PAETEC ITEL, LLC 238      
443-729 5 Woodlawn MD   829J PAETEC ITEL, LLC 238      
443-729 6 Woodlawn MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2018-12-17   
443-729 7 Woodlawn MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-02   
443-729 8 Woodlawn MD   829J PAETEC ITEL, LLC 238      
443-729 9 Woodlawn MD   829J PAETEC ITEL, LLC 238      
443-730 A Essex MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-730 0 Essex MD   829J PAETEC ITEL, LLC 238      
443-730 1 Essex MD   829J PAETEC ITEL, LLC 238      
443-730 2 Essex MD   829J PAETEC ITEL, LLC 238      
443-730 3 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-08-14   
443-730 4 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-08-14   
443-730 5 Essex MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-01-14   
443-730 6 Essex MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2016-03-29   
443-730 7 Essex MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-27   
443-730 8 Essex MD   829J PAETEC ITEL, LLC 238      
443-730 9 Essex MD   829J PAETEC ITEL, LLC 238      
443-731 A Port Deposit MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-731 0 Port Deposit MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-03-03   
443-731 1 Port Deposit MD BLTMMDCH47Z  420C ARMSTRONG TELECOMMUNICATIONS, INC. - MD 238   2008-08-05   
443-731 2 Port Deposit MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-03-05   
443-731 3 Port Deposit MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-11-19   
443-731 4 Port Deposit MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2017-08-03   
443-731 5 Port Deposit MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2018-06-16   
443-731 6 Port Deposit MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
443-731 7 Port Deposit MD BLTMMDCHXVX  321J HD CARRIER LLC 238   2016-05-14   

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

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