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
443-595 A Sparks-Glencoe MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-595 0 Sparks-Glencoe MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-595 1 Sparks-Glencoe MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-595 2 Sparks-Glencoe MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-595 3 Sparks-Glencoe MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238   2006-07-01   
443-595 4 Sparks-Glencoe MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-09-28   
443-595 5 Sparks-Glencoe MD BLTMMDCHXMX  506J TWILIO INTERNATIONAL INC 238   2020-12-26   
443-595 6 Sparks-Glencoe MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-02-18   
443-595 7 Sparks-Glencoe MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-05-20   
443-595 8 Sparks-Glencoe MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2012-05-26   
443-595 9 Sparks-Glencoe MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-08   
443-596 A Essex MD BLTMMDSNDS5  4773 XO MARYLAND, LLC 238      
443-596 0 Essex MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-596 1 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2020-04-06   
443-596 2 Essex MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC. - MD 238   2019-04-30   
443-596 3 Essex MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2017-08-16   
443-596 4 Essex MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-10-20   
443-596 5 Essex MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-10-20   
443-596 6 Essex MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2018-05-27   
443-596 7 Essex MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2018-06-11   
443-596 8 Essex MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2018-09-28   
443-596 9 Essex MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-597 A Severna Park MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-597 0 Severna Park MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-597 1 Severna Park MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-597 2 Severna Park MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2007-01-03   
443-597 3 Severna Park MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2007-01-03   
443-597 4 Severna Park MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-597 5 Severna Park MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-597 6 Severna Park MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2007-01-03   
443-597 7 Severna Park MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2007-01-03   
443-597 8 Severna Park MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2006-08-14   
443-597 9 Severna Park MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2005-06-05   
443-598 A Sherwood Forest MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-598 0 Sherwood Forest MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-598 1 Sherwood Forest MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-598 2 Sherwood Forest MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-09-06   
443-598 3 Sherwood Forest MD BLTOMDKHDS0  7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2008-10-01   
443-598 4 Sherwood Forest MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-598 5 Sherwood Forest MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2020-10-17   
443-598 6 Sherwood Forest MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2013-09-08   
443-598 7 Sherwood Forest MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2017-03-30   
443-598 8 Sherwood Forest MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-598 9 Sherwood Forest MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-599 A Severn MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-599 0 Severn MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-599 1 Severn MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-599 2 Severn MD BLTMMDCHFMD  5562 METRO PCS, INC. 238   2013-06-14   
443-599 3 Severn MD BLTMMDCHFMD  5562 METRO PCS, INC. 238   2013-06-14   
443-599 4 Severn 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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