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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
443-488 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 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES 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 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - 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 BLTMMDDN2MD  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 METROPCS, INC. 238   2016-07-28   
443-490 3 Edgewood MD BLTMMDCHFMD  5562 METROPCS, INC. 238   2016-08-04   
443-490 4 Edgewood MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-490 5 Edgewood MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-11-30   
443-490 6 Edgewood MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2017-10-19   
443-490 7 Edgewood MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2017-10-19   
443-490 8 Edgewood MD BLTQMD012MD  964H BARR TELL USA, INC. 238   2016-12-17   
443-490 9 Edgewood MD BLTMMDCHFMD  5562 METROPCS, INC. 238   2017-10-14   
443-491 A Parkton MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-491 0 Parkton MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-491 1 Parkton MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-491 2 Parkton MD PIVLMDPKFMD  5966 LIGHTWAVE COMMUNICATIONS, LLC - MD 238   2005-10-07   
443-491 3 Parkton MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-491 4 Parkton MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-491 6 Parkton MD BLTMMDCHXMX  506J TWILIO INTERNATIONAL, INC. 238   2020-12-26   
443-491 7 Parkton MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2020-09-04   
443-491 8 Parkton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-11-18   
443-491 9 Parkton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-07   
443-492 A Elkridge MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-492 0 Elkridge MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-492 1 Elkridge MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-492 2 Elkridge MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-02-12   
443-492 3 Elkridge MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-02-12   
443-492 4 Elkridge MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-492 5 Elkridge MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-492 6 Elkridge MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238   2008-08-01   
443-492 7 Elkridge MD BLTQMD018MD  145J TERRA NOVA TELECOM INC. 238   2023-04-29   
443-492 8 Elkridge MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2011-03-15   

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Last updated: Wed, 07 Feb 2024 04:12:25 UTC

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