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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
443-701 8 Arbutus MD BLTQMD013MD  939H COMMIO, LLC 238   2021-06-12   
443-701 9 Arbutus MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-02-10   
443-702 A Armiger-Gibson Island MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-702 0 Armiger-Gibson Island MD   829J PAETEC ITEL, LLC 238      
443-702 1 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-07-25   
443-702 2 Armiger-Gibson Island MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2014-10-15   
443-702 3 Armiger-Gibson Island MD   829J PAETEC ITEL, LLC 238      
443-702 4 Armiger-Gibson Island MD   829J PAETEC ITEL, LLC 238   2007-06-15   
443-702 5 Armiger-Gibson Island MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-09-23   
443-702 6 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2014-02-10   
443-702 7 Armiger-Gibson Island MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2008-09-25   
443-702 8 Armiger-Gibson Island MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-09-23   
443-702 9 Armiger-Gibson Island MD BLTMMDCHXHX  515J IP HORIZON LLC 238   2021-08-15   
443-703 A Baltimore MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-703 0 Baltimore MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-703 1 Baltimore MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-703 2 Baltimore MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-703 3 Baltimore MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2004-03-10   
443-703 4 Baltimore MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2004-04-16   
443-703 5 Baltimore MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2004-04-16   
443-703 6 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-08-13   
443-703 7 Baltimore MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2004-04-16   
443-703 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-08-13   
443-703 9 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-08-13   
443-704 A Odenton MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-704 0 Odenton MD   829J PAETEC ITEL, LLC 238      
443-704 1 Odenton MD   829J PAETEC ITEL, LLC 238      
443-704 2 Odenton MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2014-12-26   
443-704 3 Odenton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2020-06-04   
443-704 4 Odenton MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2014-12-22   
443-704 5 Odenton MD BLTMMDCHCMD  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2024-12-20   
443-704 6 Odenton MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2015-09-20   
443-704 7 Odenton MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2019-10-13   
443-704 8 Odenton MD   829J PAETEC ITEL, LLC 238      
443-704 9 Odenton MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2020-08-26   
443-705 A Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2024-03-01   
443-705 0 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-09-16   
443-705 1 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-09-16   
443-705 4 Cockeysville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-15   
443-705 5 Cockeysville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2019-08-22   
443-705 6 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2019-10-18   
443-705 7 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2019-10-18   
443-705 8 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-07-19   
443-705 9 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-07-19   
443-706 A Crisfield MD   829J PAETEC ITEL, LLC 242   2025-04-01   
443-706 0 Crisfield MD SLBRMD906MD  145J TERRA NOVA TELECOM INC. 242   2024-02-15   
443-706 1 Crisfield MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-04-29   
443-706 2 Crisfield MD   829J PAETEC ITEL, LLC 242      
443-706 3 Crisfield MD ESTNMDES5MD  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242   2009-03-02   
443-706 4 Crisfield MD SLBRMD906MD  145J TERRA NOVA TELECOM INC. 242   2024-10-12   
443-706 7 Crisfield MD SLBRMDSBXUX  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2016-10-10   
443-706 8 Crisfield MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-13   
443-706 9 Crisfield MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-04-29   
443-707 A Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
443-707 0 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-11-08   
443-707 1 Aberdeen MD   515J IP HORIZON LLC 236   2014-08-08   
443-707 2 Aberdeen MD BLTMMDCH42Z  876D ONVOY, LLC - MD 236   2015-07-29   
443-707 3 Aberdeen MD BLTMMDCH42Z  876D ONVOY, LLC - MD 236   2015-07-29   
443-707 4 Aberdeen MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 236   2014-11-17   
443-707 5 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-01-31   
443-707 6 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-01-31   
443-707 7 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-01-31   
443-707 8 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-11-08   
443-707 9 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-11-08   
443-708 A Baltimore MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-708 0 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-12-14   
443-708 1 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-12-14   
443-708 2 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-12-14   
443-708 3 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-12-14   
443-708 4 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-12-14   
443-708 5 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-12-14   
443-708 6 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-04-08   
443-708 7 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-09-20   
443-708 8 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-09-20   
443-708 9 Baltimore MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-709 A Arbutus MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-709 0 Arbutus MD   829J PAETEC ITEL, LLC 238   2001-11-05   
443-709 1 Arbutus MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-12-30   
443-709 2 Arbutus MD   829J PAETEC ITEL, LLC 238   2001-11-05   
443-709 3 Arbutus MD   829J PAETEC ITEL, LLC 238   2001-11-05   
443-709 4 Arbutus MD   829J PAETEC ITEL, LLC 238   2001-11-05   
443-709 5 Arbutus MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-02-11   
443-709 6 Arbutus MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-05-23   
443-709 7 Arbutus MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-06-14   
443-709 8 Arbutus MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2016-09-08   
443-709 9 Arbutus MD   829J PAETEC ITEL, LLC 238   2001-11-05   
443-710 A Catonsville MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-710 0 Catonsville MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-710 1 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-03-19   
443-710 2 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-03-19   
443-710 3 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-03-19   
443-710 4 Catonsville MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-710 5 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-03-19   
443-710 6 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-03-19   
443-710 7 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-03-19   
443-710 8 Catonsville MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-710 9 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-03-19   
443-712 A Reisterstown MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-712 0 Reisterstown MD   829J PAETEC ITEL, LLC 238      
443-712 1 Reisterstown MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2022-04-25   

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

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