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Washington Zone 12, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
240-970 9 WASHDC127MD  073H TELNYX LLC 236   2017-04-27   
240-973 A BTVLMD12CMA  5562 METROPCS, INC. 236      
240-973 0 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2024-10-26   
240-973 1 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2024-11-02   
240-973 2   876D ONVOY, LLC - MD 236   2025-03-09   
240-973 3 VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-01-26   
240-973 4 VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-01-26   
240-973 5 VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-02-27   
240-973 6 VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-02-27   
240-973 7 VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-02-27   
240-973 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2023-01-22   
240-973 9 BTVLMD12CMA  5562 METROPCS, INC. 236   2023-01-22   
301-236 A SLSPMDCVDS0  9212 VERIZON MARYLAND, INC. 236      
301-282 A FALDMDFLRS0  9212 VERIZON MARYLAND, INC. 236      
301-288 A WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-288 0   2593 CORE COMMUNICATIONS, INC.- MD 236   2004-03-26   
301-288 1 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-02-22   
301-288 2 LARLMDCC5MD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236   2006-05-28   
301-288 3 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-06-26   
301-288 4 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2013-10-04   
301-288 5 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-04-23   
301-288 6 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2021-11-08   
301-288 7 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2006-10-09   
301-288 8   829J PAETEC ITEL, LLC 236   2011-04-28   
301-288 9 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-384 A SLSPMDCVDS0  9212 VERIZON MARYLAND, INC. 236      
301-388 A SLSPMDCVDS0  9212 VERIZON MARYLAND, INC. 236      
301-388 0 SLSPMDCVDS0  9212 VERIZON MARYLAND, INC. 236      
301-388 1 SLSPMDCVDS0  9212 VERIZON MARYLAND, INC. 236      
301-388 2 SLSPMDCVDS0  9212 VERIZON MARYLAND, INC. 236      
301-388 3 SLSPMDCVDS0  9212 VERIZON MARYLAND, INC. 236      
301-388 4 SLSPMDCVDS0  9212 VERIZON MARYLAND, INC. 236      
301-388 5 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2014-06-06   
301-388 6 BTVLMD12CMA  5562 METROPCS, INC. 236   2013-07-25   
301-388 7   829J PAETEC ITEL, LLC 236   2008-04-11   
301-388 8 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-05-20   
301-388 9 SLSPMDCVDS0  9212 VERIZON MARYLAND, INC. 236      
301-438 A SLSPMDNBDS0  9212 VERIZON MARYLAND, INC. 236      
301-438 0 SLSPMDNBDS0  9212 VERIZON MARYLAND, INC. 236      
301-438 1 SLSPMDNBDS0  9212 VERIZON MARYLAND, INC. 236      
301-438 2 SLSPMDNBDS0  9212 VERIZON MARYLAND, INC. 236      
301-438 3 SLSPMDNBDS0  9212 VERIZON MARYLAND, INC. 236      
301-438 4 WASIDCRG7MD  508J CENTURYLINK COMMUNICATIONS, LLC 236   2014-06-25   
301-438 5 SLSPMDNBDS0  9212 VERIZON MARYLAND, INC. 236      
301-438 6 SLSPMDNBDS0  9212 VERIZON MARYLAND, INC. 236      
301-438 7 SLSPMDNBDS0  9212 VERIZON MARYLAND, INC. 236      
301-438 8 SLSPMDNBDS0  9212 VERIZON MARYLAND, INC. 236      
301-438 9 SLSPMDNBDS0  9212 VERIZON MARYLAND, INC. 236      
301-584 A VINNVACB2MD  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 236      
301-598 A SLSPMDNBDS0  9212 VERIZON MARYLAND, INC. 236      

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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