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Washington Zone 16, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
301-235 1   876D ONVOY, LLC - MD 236   2019-02-19   
301-235 2   876D ONVOY, LLC - MD 236   2018-06-08   
301-235 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2015-09-02   
301-235 4   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
301-235 5   964H BARR TELL USA, INC. 236   2018-05-08   
301-235 6   624H ONVOY SPECTRUM, LLC 236   2021-05-22   
301-235 7   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
301-235 8   876D ONVOY, LLC - MD 236   2019-02-19   
301-235 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-238 A TMHLMDTHDS0  9212 VERIZON MARYLAND, INC. 236      
301-238 0   9212 VERIZON MARYLAND, INC. 236   2001-12-21   
301-238 1   9212 VERIZON MARYLAND, INC. 236   2004-07-10   
301-238 2   9212 VERIZON MARYLAND, INC. 236      
301-238 3   9212 VERIZON MARYLAND, INC. 236      
301-238 4   829J PAETEC ITEL, LLC 236   2005-02-08   
301-238 5   829J PAETEC ITEL, LLC 236   2007-02-23   
301-238 6   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-03-29   
301-238 7   876D ONVOY, LLC - MD 236   2016-03-30   
301-238 8   876D ONVOY, LLC - MD 236   2016-03-30   
301-238 9   624H ONVOY SPECTRUM, LLC 236   2021-05-22   
301-297 A ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      
301-297 0   9212 VERIZON MARYLAND, INC. 236      
301-297 1   9212 VERIZON MARYLAND, INC. 236      
301-297 2   876D ONVOY, LLC - MD 236   2025-01-09   
301-297 3   876D ONVOY, LLC - MD 236   2021-04-02   
301-297 4   9212 VERIZON MARYLAND, INC. 236      
301-297 5   9212 VERIZON MARYLAND, INC. 236      
301-297 6   9212 VERIZON MARYLAND, INC. 236      
301-297 7   9212 VERIZON MARYLAND, INC. 236      
301-297 8   9212 VERIZON MARYLAND, INC. 236      
301-297 9   9212 VERIZON MARYLAND, INC. 236      
301-372 A BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-372 0   9212 VERIZON MARYLAND, INC. 236      
301-372 1   9212 VERIZON MARYLAND, INC. 236      
301-372 2   9212 VERIZON MARYLAND, INC. 236      
301-372 3   9212 VERIZON MARYLAND, INC. 236      
301-372 4   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-03-29   
301-372 5   829J PAETEC ITEL, LLC 236   2016-06-17   
301-372 6   9212 VERIZON MARYLAND, INC. 236      
301-372 7   508J CENTURYLINK COMMUNICATIONS, LLC 236   2014-06-25   
301-372 8   9212 VERIZON MARYLAND, INC. 236      
301-372 9   624H ONVOY SPECTRUM, LLC 236   2021-05-22   
301-719 A WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-719 0   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
301-719 1   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-719 2   876D ONVOY, LLC - MD 236   2020-04-30   
301-719 3   876D ONVOY, LLC - MD 236   2020-04-30   
301-719 4   624H ONVOY SPECTRUM, LLC 236   2021-05-22   
301-719 5   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2020-04-15   
301-719 6   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-22   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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