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Washington Zone 5, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
301-440 4 BTVLMD12CMA  5562 METROPCS, INC. 236      
301-440 5 BTVLMD12CMA  5562 METROPCS, INC. 236      
301-440 6 BTVLMD12CMA  5562 METROPCS, INC. 236      
301-440 7 BTVLMD12CMA  5562 METROPCS, INC. 236      
301-440 8 BTVLMD12CMA  5562 METROPCS, INC. 236      
301-440 9 BTVLMD12CMA  5562 METROPCS, INC. 236      
301-449 A ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      
301-456 A ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
301-456 0 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-06-26   
301-456 1 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
301-456 2 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
301-456 3 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2012-10-01   
301-456 4 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2012-06-16   
301-456 5 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2012-06-16   
301-456 6 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2011-12-15   
301-456 7 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2013-06-05   
301-456 8 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
301-456 9 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2013-10-01   
301-499 A CPHGMDCADS0  9212 VERIZON MARYLAND, INC. 236      
301-516 A STLDMDSLDS0  9212 VERIZON MARYLAND, INC. 236      
301-541 A WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-541 0 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2012-08-20   
301-541 1 WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-541 2 WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-541 3 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-02-19   
301-541 4 BTVLMD12CMA  5562 METROPCS, INC. 236   2013-06-16   
301-541 5 WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-541 6 BTVLMD12CMA  5562 METROPCS, INC. 236   2013-06-16   
301-541 7 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2008-12-13   
301-541 8 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2008-12-13   
301-541 9 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2013-10-11   
301-568 A STLDMDSLDS0  9212 VERIZON MARYLAND, INC. 236      
301-599 A CLTNMDCLDS0  9212 VERIZON MARYLAND, INC. 236      
301-635 A WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
301-635 0 VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-05-16   
301-635 1 VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-05-16   
301-635 2 VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-01-07   
301-635 3 VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-09-14   
301-635 4 VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-09-14   
301-635 5 VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-09-14   
301-635 6 VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-02-09   
301-635 7 VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-02-09   
301-635 8 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2022-11-03   
301-635 9 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2023-09-07   
301-636 A LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-636 0 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2019-10-28   
301-636 1 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-636 2 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-636 3 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2013-08-27   
301-636 4 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2010-01-09   
301-636 5 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-09-27   
301-636 6 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-636 7 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-09-27   
301-636 8 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-636 9 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-669 A STLDMDSLDS0  9212 VERIZON MARYLAND, INC. 236      
301-702 A TMHLMDTHDS0  9212 VERIZON MARYLAND, INC. 236      
301-727 A VINNVACB2MD  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 236      
301-735 A STLDMDSLDS0  9212 VERIZON MARYLAND, INC. 236      
301-736 A STLDMDSLDS0  9212 VERIZON MARYLAND, INC. 236      
301-763 A STLDMDSLDS0  9212 VERIZON MARYLAND, INC. 236      
301-778 A WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-778 0 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2012-10-12   
301-778 1 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-778 2 VINNVACBDS0  876D ONVOY, LLC - MD 236   2008-10-05   
301-778 3 WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2008-10-10   
301-778 4 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-10-28   
301-778 5 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2012-07-15   
301-778 6 VINNVACBDS0  876D ONVOY, LLC - MD 236   2012-04-05   
301-778 7 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2007-10-22   
301-778 8 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-10-28   
301-778 9 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2012-10-12   
301-808 A CPHGMDCADS0  9212 VERIZON MARYLAND, INC. 236      
301-817 A STLDMDSLDS0  9212 VERIZON MARYLAND, INC. 236      
301-836 A TMHLMDTHDS0  9212 VERIZON MARYLAND, INC. 236      
301-836 0   515J IP HORIZON LLC 236   2013-09-06   
301-836 1 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-01-21   
301-836 2 WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2013-01-15   
301-836 3 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2011-01-25   
301-836 4 LARLMDCC5MD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236   2010-12-22   
301-836 5 WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2010-09-02   
301-836 6 WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2010-09-02   
301-836 7 TMHLMDTHDS0  9212 VERIZON MARYLAND, INC. 236      
301-836 8 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-07-20   
301-836 9   829J PAETEC ITEL, LLC 236   2004-03-27   
301-883 A LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-883 0 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-883 1 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-02-26   
301-883 2 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-883 3 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-883 4 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-883 5 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-883 6 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-883 7 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-883 8 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-883 9 LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-899 A TMHLMDTHDS0  9212 VERIZON MARYLAND, INC. 236      
301-909 A WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-909 0 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2013-06-18   
301-909 1 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2015-11-18   

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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