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Washington Zone 11, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
240-558 0 SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   
240-558 1 VINNVACBDS0  876D ONVOY, LLC - MD 236   2008-10-05   
240-558 2   829J PAETEC ITEL, LLC 236      
240-558 3 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2008-04-30   
240-558 4 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2008-04-30   
240-558 5 VINNVACBDS0  876D ONVOY, LLC - MD 236   2012-10-07   
240-558 6 VINNVACBDS0  876D ONVOY, LLC - MD 236   2015-07-30   
240-558 7 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-08-19   
240-558 8 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-08-19   
240-558 9 SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   
240-621 A WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-621 0 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-01-27   
240-621 1 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2013-06-16   
240-621 2 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2013-06-16   
240-621 3 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2011-10-23   
240-621 4 VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-04-28   
240-621 5 VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-04-28   
240-621 6   515J IP HORIZON LLC 236   2017-07-07   
240-621 7 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2011-12-10   
240-621 8 WASHDC127MD  073H TELNYX LLC 236   2017-03-14   
240-621 9   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-24   
240-627 A   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-627 0 VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-11-10   
240-627 1 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2024-12-05   
240-627 2 VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-05-24   
240-627 3 MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-627 4 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2024-12-05   
240-627 5   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-24   
240-627 6 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2007-09-28   
240-627 7 WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2008-08-31   
240-627 8 WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2008-08-31   
240-627 9   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-669 A ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
240-669 0 WASHDCDTDS1  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2009-10-12   
240-669 1   515J IP HORIZON LLC 236   2013-09-06   
240-669 2 MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2012-02-24   
240-669 3 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2013-05-04   
240-669 4 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2013-05-31   
240-669 5 MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-07-03   
240-669 6 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2006-12-14   
240-669 7 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2006-12-14   
240-669 8 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2006-12-14   
240-669 9 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2012-11-03   
240-747 A   829J PAETEC ITEL, LLC 236   2025-04-02   
240-747 0   829J PAETEC ITEL, LLC 236      
240-747 1   829J PAETEC ITEL, LLC 236      
240-747 2   829J PAETEC ITEL, LLC 236      
240-747 3   829J PAETEC ITEL, LLC 236      
240-747 4   829J PAETEC ITEL, LLC 236      
240-747 5   829J PAETEC ITEL, LLC 236      

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Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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