Local Calling Guide

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New Windsor, MD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-635 A NWWNMDNWRS0  9212 VERIZON MARYLAND, INC. 238      
410-635 0 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-08-17   
410-635 1 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
410-635 2 NWWNMDNWRS0  9212 VERIZON MARYLAND, INC. 238      
410-635 3 NWWNMDNWRS0  9212 VERIZON MARYLAND, INC. 238      
410-635 4 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
410-635 5   829J PAETEC ITEL, LLC 238   2004-02-05   
410-635 6 NWWNMDNWRS0  9212 VERIZON MARYLAND, INC. 238      
410-635 7   829J PAETEC ITEL, LLC 238   2010-01-15   
410-635 8 NWWNMDNWRS0  9212 VERIZON MARYLAND, INC. 238      
410-635 9 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-08-17   
443-647 A   829J PAETEC ITEL, LLC 238   2025-04-01   
443-647 0 BLTQMD018MD  145J TERRA NOVA TELECOM INC. 238   2024-02-15   
443-647 1   829J PAETEC ITEL, LLC 238      
443-647 2   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   
443-647 3 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-04-08   
443-647 4 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-04-08   
443-647 5 BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-26   
443-647 6   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-647 7 BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-12   
443-647 8 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-17   
443-647 9 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-17   
443-671 A BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-671 0   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-03-29   
443-671 1 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-03-05   
443-671 2 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-09-02   
443-671 4 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-07-31   
443-671 5   829J PAETEC ITEL, LLC 238   2006-04-07   
443-671 6 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-01-19   
443-671 7 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-11-18   
443-671 8 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-07-31   
443-671 9 BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-892 A BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-892 0 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-10-07   
443-892 1 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-10-10   
443-892 2 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-10-10   
443-892 3 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-10-10   
443-892 4 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-10-10   
443-892 5   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-892 6 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2012-02-24   
443-892 7 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-07   
443-892 8 BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-892 9 BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
667-332 A BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
667-332 0   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-12-06   
667-332 1   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-12-06   
667-332 2 BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-02   
667-332 3 BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-30   
667-332 4 BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-02   
667-332 5 BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-02   
667-332 6 BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-02   
667-332 7 BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-02   
667-332 8   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-12-06   
667-332 9 BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-30   
667-394 A BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
667-394 0 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-04-24   
667-394 2 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2023-03-13   
667-394 6 BLTQMD01BMD  516J TON80 COMMUNICATIONS, LLC 238   2022-04-25   
667-966 A BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-966 0 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-23   
667-966 1 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-23   
667-966 2 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2021-12-04   
667-966 3 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-02-05   
667-966 4 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-02-05   
667-966 5 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-02-25   
667-966 6 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-22   
667-966 7 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-23   
667-966 8 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-23   
667-966 9 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-05-23   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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