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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
443-397 1 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2010-03-13   
443-397 2 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-09-03   
443-397 3 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-10-02   
443-397 4 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-10-14   
443-397 5 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-10-14   
443-397 6 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2010-01-16   
443-397 7 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-08-01   
443-397 8 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2010-02-16   
443-397 9 Salisbury MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2010-03-28   
443-398 A Sykesville MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-398 0 Sykesville MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-398 1 Sykesville MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-398 2 Sykesville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-02-26   
443-398 3 Sykesville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-02-29   
443-398 4 Sykesville MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-398 5 Sykesville MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-398 6 Sykesville MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-398 7 Sykesville MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-398 8 Sykesville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2016-04-22   
443-398 9 Sykesville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
443-399 A Dundalk MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-399 0 Dundalk MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-399 1 Dundalk MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-399 2 Dundalk MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-08   
443-399 3 Dundalk MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-23   
443-399 4 Dundalk MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-399 5 Dundalk MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2020-10-28   
443-399 6 Dundalk MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-23   
443-399 7 Dundalk MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-04-02   
443-399 8 Dundalk MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2008-03-19   
443-399 9 Dundalk MD   515J IP HORIZON LLC 238   2013-09-06   
443-400 A Brooklyn Park-Linthicum MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-400 0 Brooklyn Park-Linthicum MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-400 1 Brooklyn Park-Linthicum MD BLTMMDCHFMD  5562 METROPCS, INC. 238   2013-10-11   
443-400 2 Brooklyn Park-Linthicum MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-400 3 Brooklyn Park-Linthicum MD BLTMMDCHFMD  5562 METROPCS, INC. 238   2013-06-14   
443-400 4 Brooklyn Park-Linthicum MD BLTMMDCHFMD  5562 METROPCS, INC. 238   2013-10-11   
443-400 5 Brooklyn Park-Linthicum MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-400 6 Brooklyn Park-Linthicum MD BLTMMDCHFMD  5562 METROPCS, INC. 238   2014-03-27   
443-400 7 Brooklyn Park-Linthicum MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-09-13   
443-400 8 Brooklyn Park-Linthicum MD BLTMMDCHW29  4716 PAETEC COMMUNICATIONS, INC. - MD 238   2002-05-19   
443-400 9 Brooklyn Park-Linthicum MD BLTMMDCHFMD  5562 METROPCS, INC. 238   2013-10-04   
443-401 A Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-401 0 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-12-16   
443-401 1 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-12-16   
443-401 2 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-12-16   
443-401 3 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-12-19   
443-401 4 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-12-19   
443-401 5 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-12-19   
443-401 6 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-12-19   

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Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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