Local Calling Guide

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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
443-486 A Prince Frederick MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-486 0 Prince Frederick MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-486 1 Prince Frederick MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-10   
443-486 2 Prince Frederick MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-03-14   
443-486 3 Prince Frederick MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-10   
443-486 4 Prince Frederick MD PRFRMDPFRS1  9212 VERIZON MARYLAND, INC. 238   2004-07-15   
443-486 5 Prince Frederick MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2013-09-06   
443-486 6 Prince Frederick MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-486 7 Prince Frederick MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-02-13   
443-486 8 Prince Frederick MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2008-03-31   
443-486 9 Prince Frederick MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-487 A Westminster MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-487 0 Westminster MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-487 1 Westminster MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-03-03   
443-487 2 Westminster MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-04-04   
443-487 3 Westminster MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2009-02-02   
443-487 4 Westminster MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-05-05   
443-487 5 Westminster MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238   2002-11-16   
443-487 6 Westminster MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-09-03   
443-487 7 Westminster MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-09-21   
443-487 8 Westminster MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238   2002-11-25   
443-487 9 Westminster MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-488 A Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-488 0 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-08-14   
443-488 1 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-08-14   
443-488 2 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-08-14   
443-488 3 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-08-14   
443-488 4 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-08-14   
443-488 5 Baltimore MD BLTMMDSNDS5  4773 XO MARYLAND, LLC 238   2010-10-20   
443-488 6 Baltimore MD BLTMMDSNDS5  4773 XO MARYLAND, LLC 238   2010-10-20   
443-488 7 Baltimore MD BLTMMDSNDS5  4773 XO MARYLAND, LLC 238   2010-10-20   
443-488 8 Baltimore MD BLTMMDSNDS5  4773 XO MARYLAND, LLC 238   2010-10-20   
443-488 9 Baltimore MD BLTMMDSNDS5  4773 XO MARYLAND, LLC 238   2010-10-20   
443-489 A Chase MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-489 0 Chase MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238   2001-11-19   
443-489 1 Chase MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-489 2 Chase MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-24   
443-489 3 Chase MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238   2007-01-24   
443-489 4 Chase MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-24   
443-489 5 Chase MD BLTOMDKHDS0  7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2008-10-01   
443-489 6 Chase MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-02-13   
443-489 7 Chase MD   508J CENTURYLINK COMMUNICATIONS LLC 238   2014-06-25   
443-489 8 Chase MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-489 9 Chase MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-490 A Edgewood MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-490 0 Edgewood MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-490 1 Edgewood MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-490 2 Edgewood MD BLTMMDCHFMD  5562 METRO PCS, INC. 238   2016-07-28   
443-490 3 Edgewood MD BLTMMDCHFMD  5562 METRO PCS, INC. 238   2016-08-04   
443-490 4 Edgewood MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      

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Last updated: Sun, 28 Feb 2021 19:06:05 UTC

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