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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
443-259 5 Columbia MD CLMAMDJTDSA  2589 US LEC OF MARYLAND, INC. 238   2013-09-05   
443-259 6 Columbia MD CLMAMDOBDS0  9212 VERIZON MARYLAND, INC. 238      
443-259 7 Columbia MD CLMAMDOBDS0  9212 VERIZON MARYLAND, INC. 238      
443-259 8 Columbia MD CLMAMDOBDS0  9212 VERIZON MARYLAND, INC. 238      
443-259 9 Columbia MD BLTMMDCHAMD  1958 ATX TELECOMMUNICATIONS SERVICES, LTD 238   2003-02-25   
443-260 A Salisbury MD SLBRMDSBDS1  9212 VERIZON MARYLAND, INC. 242      
443-260 0 Salisbury MD SLBRMDSBDS1  9212 VERIZON MARYLAND, INC. 242      
443-260 1 Salisbury MD SLBRMDSBDS1  9212 VERIZON MARYLAND, INC. 242      
443-260 2 Salisbury MD SLBRMDSBDS1  9212 VERIZON MARYLAND, INC. 242      
443-260 3 Salisbury MD SLBRMDSBDS1  9212 VERIZON MARYLAND, INC. 242      
443-260 4 Salisbury MD SLBRMDSBDS1  9212 VERIZON MARYLAND, INC. 242      
443-260 5 Salisbury MD SLBRMDSBDS1  9212 VERIZON MARYLAND, INC. 242      
443-260 6 Salisbury MD SLBRMDSBDS1  9212 VERIZON MARYLAND, INC. 242      
443-260 7 Salisbury MD SLBRMDSBDS1  9212 VERIZON MARYLAND, INC. 242      
443-260 8 Salisbury MD SLBRMDSBDS1  9212 VERIZON MARYLAND, INC. 242      
443-260 9 Salisbury MD SLBRMDSBRMD  6664 SPRINT SPECTRUM L.P. 242   2011-10-10   
443-261 A Severna Park MD BLTOMDKHDS0  7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
443-261 0 Severna Park MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-09-24   
443-261 1 Severna Park MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238   2002-04-17   
443-261 2 Severna Park MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238   2010-08-06   
443-261 3 Severna Park MD BLTOMDKHDS0  7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2008-10-01   
443-261 4 Severna Park MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-09-04   
443-261 5 Severna Park MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-28   
443-261 6 Severna Park MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2010-11-12   
443-261 7 Severna Park MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2010-11-12   
443-261 8 Severna Park MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2010-11-12   
443-261 9 Severna Park MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2010-11-12   
443-262 A Centreville MD CNVLMDCTRS2  9212 VERIZON MARYLAND, INC. 242      
443-262 0 Centreville MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2012-08-27   
443-262 1 Centreville MD SLBRMDSCXLX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2004-01-18   
443-262 2 Centreville MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2004-02-28   
443-262 3 Centreville MD SLBRMDFSDS0  2593 CORE COMMUNICATIONS, INC. - MD 242   2004-04-02   
443-262 4 Centreville MD CNVLMDCTRS2  9212 VERIZON MARYLAND, INC. 242   2004-06-21   
443-262 5 Centreville MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2005-12-02   
443-262 6 Centreville MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2006-04-01   
443-262 7 Centreville MD SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
443-262 8 Centreville MD ESTNMDESMMD  228C IDT AMERICA CORP - MD 242   2006-05-06   
443-262 9 Centreville MD CNVLMDCTRS2  9212 VERIZON MARYLAND, INC. 242      
443-263 A Baltimore MD BLTMMDCHDS3  9212 VERIZON MARYLAND, INC. 238      
443-264 A Pikesville MD BLTMMDCHYMD  2593 CORE COMMUNICATIONS, INC. - MD 238      
443-264 2 Pikesville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-03-29   
443-264 3 Pikesville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2018-05-31   
443-264 4 Pikesville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2018-06-08   
443-264 5 Pikesville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-264 6 Pikesville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-264 7 Pikesville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-264 8 Pikesville MD BLTMMDCHDMD  551G BRIGHTLINK COMMUNICATIONS, LLC 238   2018-07-23   
443-264 9 Pikesville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-265 A Fork MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-265 0 Fork MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      

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

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