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Towson, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-832 8   9212 VERIZON MARYLAND, INC. 238      
410-832 9   624H ONVOY SPECTRUM, LLC 238   2024-10-23   
410-839 A HNVAMDAE3MD  6630 USA MOBILITY WIRELESS, INC. 238      
410-842 A BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-842 0   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-842 1   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-842 2   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-842 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-01   
410-842 4   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-842 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-01   
410-842 6   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-842 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-01   
410-842 8   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-842 9   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-847 A TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-847 0   624H ONVOY SPECTRUM, LLC 238   2024-10-23   
410-847 1   9212 VERIZON MARYLAND, INC. 238      
410-847 2   876D ONVOY, LLC - MD 238   2016-02-29   
410-847 3   9212 VERIZON MARYLAND, INC. 238      
410-847 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-12-12   
410-847 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-12-12   
410-847 6   9212 VERIZON MARYLAND, INC. 238      
410-847 7   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2019-03-25   
410-847 8   145J TERRA NOVA TELECOM INC. 238   2025-07-25   
410-847 9   9212 VERIZON MARYLAND, INC. 238      
410-851 A BRKLMDBKRP0  9212 VERIZON MARYLAND, INC. 238      
410-853 A TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-853 0   9212 VERIZON MARYLAND, INC. 238      
410-853 1   9212 VERIZON MARYLAND, INC. 238      
410-853 2   9212 VERIZON MARYLAND, INC. 238      
410-853 3   9212 VERIZON MARYLAND, INC. 238      
410-853 4   9212 VERIZON MARYLAND, INC. 238      
410-853 5   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-853 6   9212 VERIZON MARYLAND, INC. 238      
410-853 7   318J COMCAST IP PHONE, LLC 238   2005-03-10   
410-853 8   9212 VERIZON MARYLAND, INC. 238      
410-853 9   9212 VERIZON MARYLAND, INC. 238      
410-887 A TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-890 A HNVAMDAE3MD  6630 USA MOBILITY WIRELESS, INC. 238      
410-894 A HNVAMDAE3MD  6630 USA MOBILITY WIRELESS, INC. 238      
410-899 A HNVAMDAE3MD  6630 USA MOBILITY WIRELESS, INC. 238      
410-938 A TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-938 0   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-06-23   
410-938 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2018-12-07   
410-938 2   9212 VERIZON MARYLAND, INC. 238      
410-938 3   9212 VERIZON MARYLAND, INC. 238      
410-938 4   9212 VERIZON MARYLAND, INC. 238      
410-938 5   9212 VERIZON MARYLAND, INC. 238      
410-938 6   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2019-01-10   
410-938 7   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2019-01-10   
410-938 8   9212 VERIZON MARYLAND, INC. 238      
410-938 9   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-06-23   
410-967 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-269 A BLTQMD01BMD  2593 CORE COMMUNICATIONS, INC.- MD 238      
443-269 0   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2019-11-01   
443-269 1   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-10-14   
443-269 2   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2019-01-10   
443-269 3   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-269 4   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-269 5   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-269 6   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2019-11-01   
443-269 7   071F BANDWIDTH.COM CLEC, LLC - MD 238   2018-06-29   
443-269 8   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2018-09-22   
443-269 9   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-10-14   
443-275 A BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-275 0   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2013-01-19   
443-275 1   318J COMCAST IP PHONE, LLC 238   2006-09-11   
443-275 2   318J COMCAST IP PHONE, LLC 238   2007-08-13   
443-275 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-01   
443-275 4   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
443-275 5   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2010-11-20   
443-275 6   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2012-10-27   
443-275 7   318J COMCAST IP PHONE, LLC 238   2012-09-26   
443-275 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-01-29   
443-275 9   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-02-13   
443-279 A BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-279 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-279 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-279 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-279 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-279 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-279 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-279 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-279 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-279 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-01   
443-279 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-322 A   829J PAETEC ITEL, LLC 238   2025-04-01   
443-322 0   829J PAETEC ITEL, LLC 238      
443-322 1   829J PAETEC ITEL, LLC 238      
443-322 2   829J PAETEC ITEL, LLC 238      
443-322 3   876D ONVOY, LLC - MD 238   2020-06-04   
443-322 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-01   
443-322 5   829J PAETEC ITEL, LLC 238      
443-322 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-01   
443-322 7   829J PAETEC ITEL, LLC 238      
443-322 8   829J PAETEC ITEL, LLC 238      
443-322 9   829J PAETEC ITEL, LLC 238      
443-377 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-377 0   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-08-06   
443-377 1   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-28   

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

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