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Essex, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-238 A ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-238 0 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-238 1 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-238 2 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-238 3 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-238 4 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-238 5 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-238 6 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-238 7 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-238 8 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-238 9 BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-11   
410-391 A ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-406 A BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-406 0 BLTMMDCH08Z  4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2003-11-08   
410-406 1 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-08   
410-406 2 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2020-04-19   
410-406 3 BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238   2006-06-01   
410-406 4 BLTQMD012MD  964H BARR TELL USA, INC. 238   2016-12-17   
410-406 5   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-03-29   
410-406 6 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2017-06-02   
410-406 7 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2004-11-27   
410-406 8   829J PAETEC ITEL, LLC 238   2004-03-27   
410-406 9 BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-574 A ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-682 A ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-682 0 BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-682 1 BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-682 2 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-682 3 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-682 4 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-682 5 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-682 6 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-682 7   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-30   
410-682 8 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-682 9 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-686 A ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-687 A ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-780 A ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-866 A BLTMMDFRDS0  9212 VERIZON MARYLAND, INC. 238      
410-918 A ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-918 0 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-918 1 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-918 2 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-918 3 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-918 4 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-918 5 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-918 6 BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-918 7 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-05-29   
410-918 8 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-05-29   
410-918 9 ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
443-231 A BLTMMDCHCMD  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-231 0 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-02-11   
443-231 1   829J PAETEC ITEL, LLC 238   2005-04-29   
443-231 2 BLTMMDCHCMD  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-231 3 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-04-24   
443-231 4 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2003-02-20   
443-231 5 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-231 6 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-06-20   
443-231 7 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-06-20   
443-231 8 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2006-08-25   
443-231 9   515J IP HORIZON LLC 238   2016-05-31   
443-460 A BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-460 0 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-460 1 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-460 2 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-460 3 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-460 4 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-460 6 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-460 7 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-460 8 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-03-31   
443-460 9 BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-505 A   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-505 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-05-01   
443-505 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-05-01   
443-505 2 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2011-12-24   
443-505 3 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2014-03-20   
443-505 5 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-26   
443-505 6 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2018-10-18   
443-505 7 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-05-16   
443-505 8 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2014-09-21   
443-505 9 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2019-10-07   
443-559 A BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-559 0 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-559 1 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-02-04   
443-559 2 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-03-02   
443-559 3   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-30   
443-559 4 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-04-29   
443-559 5 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-10-29   
443-559 6 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-10-29   
443-559 7 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-06-16   
443-559 8 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2008-06-16   
443-559 9 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2008-06-16   
443-579 A   829J PAETEC ITEL, LLC 238   2025-04-01   
443-579 0   829J PAETEC ITEL, LLC 238      
443-579 1   829J PAETEC ITEL, LLC 238      
443-579 2   829J PAETEC ITEL, LLC 238      
443-579 3   829J PAETEC ITEL, LLC 238      
443-579 4 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-06-26   
443-579 5 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
443-579 6 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-07-17   

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Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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