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Washington Zone 13, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
301-513 8 VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-09-15   
301-513 9 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-552 A LNHMMDLNDS0  9212 VERIZON MARYLAND, INC. 236      
301-558 A   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-08-28   
301-558 0   071F BANDWIDTH.COM CLEC, LLC - MD 236   2026-05-09   
301-558 1   071F BANDWIDTH.COM CLEC, LLC - MD 236   2026-05-09   
301-558 2   876D ONVOY, LLC - MD 236   2025-09-28   
301-558 3   876D ONVOY, LLC - MD 236   2025-09-28   
301-558 4   876D ONVOY, LLC - MD 236   2025-09-28   
301-558 5   876D ONVOY, LLC - MD 236   2025-08-29   
301-558 6   876D ONVOY, LLC - MD 236   2025-09-28   
301-558 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-09-25   
301-558 8   876D ONVOY, LLC - MD 236   2025-08-29   
301-558 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-08-28   
301-566 A MRKKMDMKDS0  9212 VERIZON MARYLAND, INC. 236      
301-595 A BTVLMDBVDS0  9212 VERIZON MARYLAND, INC. 236      
301-614 A CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-615 A WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
301-623 A WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-623 0 WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-623 1 WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-623 2 WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-623 3 WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-623 4 WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-623 5   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-623 6   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-623 7   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-623 8   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-15   
301-623 9   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-15   
301-647 A WASHDCDP8MD  9748 AMERICAN MESSAGING SERVICES, LLC 236      
301-688 A LARLMDDYDS0  9212 VERIZON MARYLAND, INC. 236      
301-701 A WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
301-701 0 BTVLMD12CMA  5562 METROPCS, INC. 236   2018-04-08   
301-701 1 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2024-12-05   
301-701 2 VINNVACBDS0  876D ONVOY, LLC - MD 236   2020-12-03   
301-701 3 VINNVACBDS0  876D ONVOY, LLC - MD 236   2020-12-03   
301-701 4 VINNVACBDS0  876D ONVOY, LLC - MD 236   2020-12-03   
301-701 5 VINNVACBDS0  876D ONVOY, LLC - MD 236   2020-12-03   
301-701 6 WASHDC125MD  197D VONAGE AMERICA LLC 236   2020-05-20   
301-701 7 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2024-12-05   
301-701 8 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2024-12-05   
301-701 9 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2024-12-05   
301-716 A MRKKMDMKDS0  9212 VERIZON MARYLAND, INC. 236      
301-796 A BTVLMDBVDS0  9212 VERIZON MARYLAND, INC. 236      
301-823 A WASHDCDTDS1  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-823 0   876D ONVOY, LLC - MD 236   2025-02-01   
301-823 1   876D ONVOY, LLC - MD 236   2025-02-01   
301-823 2 WASHDCDTDS1  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2008-10-10   
301-823 3   829J PAETEC ITEL, LLC 236   2012-11-21   
301-823 4   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-06-16   

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Last updated: Sat, 02 May 2026 12:20:53 UTC

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