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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
443-534 6 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2004-02-28   
443-534 7 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2004-06-03   
443-534 8 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2004-08-02   
443-534 9 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-535 A Columbia MD CLVLMDCERP0  9212 VERIZON MARYLAND, INC. 238   2024-01-30   
443-535 0 Columbia MD CLVLMDCERP0  9212 VERIZON MARYLAND, INC. 238      
443-535 1 Columbia MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-05-20   
443-535 2 Columbia MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-09-15   
443-535 3 Columbia MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2006-01-21   
443-535 4 Columbia MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2006-05-15   
443-535 5 Columbia MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-02-08   
443-535 6 Columbia MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-03-21   
443-535 7 Columbia MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2009-07-09   
443-535 8 Columbia MD CLVLMDCERP0  9212 VERIZON MARYLAND, INC. 238      
443-535 9 Columbia MD CLVLMDCERP0  9212 VERIZON MARYLAND, INC. 238      
443-536 A Westminster MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-536 0 Westminster MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-12-10   
443-536 1 Westminster MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-536 2 Westminster MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2005-01-18   
443-536 3 Westminster MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-536 4 Westminster MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2007-08-22   
443-536 5 Westminster MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-536 6 Westminster MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-536 7 Westminster MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2007-08-22   
443-536 8 Westminster MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2006-06-07   
443-536 9 Westminster MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-537 A Columbia MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-537 0 Columbia MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2009-10-30   
443-537 1 Columbia MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2009-10-25   
443-537 2 Columbia MD   829J PAETEC ITEL, LLC 238   2011-03-11   
443-537 3 Columbia MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-06-03   
443-537 4 Columbia MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2009-07-13   
443-537 5 Columbia MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-06-14   
443-537 6 Columbia MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-06-14   
443-537 7 Columbia MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-06-14   
443-537 8 Columbia MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-06-14   
443-537 9 Columbia MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-02-05   
443-538 A Columbia MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-539 A Columbia MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-539 0 Columbia MD   829J PAETEC ITEL, LLC 238      
443-539 1 Columbia MD   829J PAETEC ITEL, LLC 238      
443-539 2 Columbia MD   829J PAETEC ITEL, LLC 238      
443-539 3 Columbia MD   829J PAETEC ITEL, LLC 238      
443-539 4 Columbia MD   829J PAETEC ITEL, LLC 238   2006-08-15   
443-539 5 Columbia MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2008-10-01   
443-539 6 Columbia MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-28   
443-539 7 Columbia MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2010-02-15   
443-539 8 Columbia MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-02-13   
443-539 9 Columbia MD   829J PAETEC ITEL, LLC 238      
443-540 A Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-541 A Cockeysville MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-541 0 Cockeysville MD   829J PAETEC ITEL, LLC 238      
443-541 1 Cockeysville MD   829J PAETEC ITEL, LLC 238      
443-541 2 Cockeysville MD   829J PAETEC ITEL, LLC 238      
443-541 3 Cockeysville MD   829J PAETEC ITEL, LLC 238      
443-541 4 Cockeysville MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2003-08-20   
443-541 5 Cockeysville MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-01-10   
443-541 6 Cockeysville MD   515J IP HORIZON LLC 238   2016-10-14   
443-541 7 Cockeysville MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-03-14   
443-541 8 Cockeysville MD   829J PAETEC ITEL, LLC 238      
443-541 9 Cockeysville MD   829J PAETEC ITEL, LLC 238      
443-542 A Columbia MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-542 0 Columbia MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-542 1 Columbia MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-11-25   
443-542 2 Columbia MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-542 3 Columbia MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-03-12   
443-542 4 Columbia MD CLMAMDSRRS0  9212 VERIZON MARYLAND, INC. 238   2004-12-20   
443-542 5 Columbia MD   829J PAETEC ITEL, LLC 238   2004-06-25   
443-542 6 Columbia MD CLMAMDSRRS0  9212 VERIZON MARYLAND, INC. 238   2004-12-20   
443-542 7 Columbia MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-02-02   
443-542 8 Columbia MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-09-01   
443-542 9 Columbia MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-01-19   
443-543 A Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
443-543 0 Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
443-543 1 Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
443-543 2 Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
443-543 3 Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
443-543 4 Arbutus MD BLTQMD013MD  939H COMMIO, LLC 238   2021-07-05   
443-543 5 Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
443-543 6 Arbutus MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-07-02   
443-543 7 Arbutus MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-11-26   
443-543 8 Arbutus MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-10-06   
443-543 9 Arbutus MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-10-06   
443-544 A Pikesville MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-544 0 Pikesville MD   829J PAETEC ITEL, LLC 238      
443-544 1 Pikesville MD   829J PAETEC ITEL, LLC 238      
443-544 2 Pikesville MD   829J PAETEC ITEL, LLC 238      
443-544 3 Pikesville MD   829J PAETEC ITEL, LLC 238      
443-544 4 Pikesville MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-11-19   
443-544 5 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-03-10   
443-544 6 Pikesville MD   829J PAETEC ITEL, LLC 238      
443-544 7 Pikesville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2013-04-10   
443-544 8 Pikesville MD   829J PAETEC ITEL, LLC 238      
443-544 9 Pikesville MD   829J PAETEC ITEL, LLC 238      
443-545 A Columbia MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-545 0 Columbia MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-09-25   
443-545 1 Columbia MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-545 2 Columbia MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-545 3 Columbia MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-545 4 Columbia MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-04-04   

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

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