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Washington Zone 16, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
240-318 A CLTNMDCLDS0  9212 VERIZON MARYLAND, INC. 236      
240-318 0   9212 VERIZON MARYLAND, INC. 236      
240-318 1   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-04   
240-318 2   318J COMCAST IP PHONE, LLC 236   2008-02-22   
240-318 3   318J COMCAST IP PHONE, LLC 236   2009-11-27   
240-318 4   5562 METROPCS, INC. 236   2013-06-16   
240-318 5   318J COMCAST IP PHONE, LLC 236   2013-09-08   
240-318 6   5562 METROPCS, INC. 236   2015-02-05   
240-318 7   876D ONVOY, LLC - MD 236   2016-03-11   
240-318 8   4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 236   2004-04-06   
240-318 9   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-04   
240-348 A MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-348 0   515J IP HORIZON LLC 236   2015-03-21   
240-348 1   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-348 2   071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-08-19   
240-348 3   071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-08-19   
240-348 4   318J COMCAST IP PHONE, LLC 236   2010-09-10   
240-348 5   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2012-01-14   
240-348 6   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2011-10-09   
240-348 7   318J COMCAST IP PHONE, LLC 236   2013-07-19   
240-348 8   876D ONVOY, LLC - MD 236   2016-03-11   
240-348 9   876D ONVOY, LLC - MD 236   2016-04-28   
240-407 A   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-407 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-08-21   
240-407 1   876D ONVOY, LLC - MD 236   2016-04-28   
240-407 2   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-407 3   876D ONVOY, LLC - MD 236   2021-04-02   
240-407 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-08-21   
240-407 5   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
240-407 6   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
240-407 7   876D ONVOY, LLC - MD 236   2011-04-23   
240-407 8   876D ONVOY, LLC - MD 236   2021-04-02   
240-546 A   829J PAETEC ITEL, LLC 236   2025-04-02   
240-546 0   829J PAETEC ITEL, LLC 236      
240-546 1   829J PAETEC ITEL, LLC 236      
240-546 2   829J PAETEC ITEL, LLC 236      
240-546 3   829J PAETEC ITEL, LLC 236      
240-546 4   829J PAETEC ITEL, LLC 236      
240-546 5   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-06-16   
240-546 6   876D ONVOY, LLC - MD 236   2015-06-27   
240-546 7   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-06-16   
240-546 8   515J IP HORIZON LLC 236   2016-05-31   
240-546 9   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-05-01   
240-846 A WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-846 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-846 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-846 2   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-05-01   
240-846 3   071F BANDWIDTH.COM CLEC, LLC - MD 236   2012-10-12   
240-846 4   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-06-16   
240-846 5   318J COMCAST IP PHONE, LLC 236   2018-10-05   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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