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Washington Zone 13, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
301-486 0 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-486 1 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-486 2 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-486 3 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-486 4 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-486 5   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
301-486 6 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-486 7 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-486 8   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
301-486 9   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
301-488 A CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-489 A CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-489 0 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-489 1 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-489 2   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-489 3 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-489 4 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-489 5 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-489 6 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-489 7 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-489 8 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-489 9 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-506 A SLSPMDSSX6X  6630 USA MOBILITY WIRELESS, INC. 236      
301-507 A CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-507 0 VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-02-24   
301-507 1 VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-02-24   
301-507 2 VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-02-24   
301-507 3 VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-02-24   
301-507 4 VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-07-27   
301-507 5 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-507 6 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-507 7 VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-07-27   
301-507 8 VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-07-27   
301-507 9 VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-07-27   
301-510 A SLSPMDSSX6X  6630 USA MOBILITY WIRELESS, INC. 236      
301-513 A CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-513 0 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-513 1 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-513 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-06-01   
301-513 3 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-513 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2025-06-01   
301-513 5 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-513 6 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-513 7 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
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 SLSPMDSSX6X  6630 USA MOBILITY WIRELESS, INC. 236     2025-06-26 
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   
301-823 5 WASHDC125MD  197D VONAGE AMERICA LLC 236   2020-05-20   
301-823 6   876D ONVOY, LLC - MD 236   2025-03-09   
301-823 7   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-823 8 LARLMDCCDS0  4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 236   2004-04-06   
301-823 9 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2021-11-08   
301-837 A WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-837 0 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-837 1 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-837 2 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-837 3 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-837 4 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2018-10-28   
301-837 5 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-837 6 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2018-10-28   
301-837 7 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2018-10-28   
301-837 8 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2015-03-14   
301-837 9 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      

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Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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