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Fallston, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-459 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
410-688 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
410-808 A BLTMMDCH40Z  5562 METROPCS, INC. 238      
410-808 0 BLTMMDCH40Z  5562 METROPCS, INC. 238      
410-808 1 BLTMMDCH40Z  5562 METROPCS, INC. 238      
410-808 2 BLTMMDCH40Z  5562 METROPCS, INC. 238      
410-808 3 BLTMMDCH40Z  5562 METROPCS, INC. 238      
410-808 4 BLTMMDCH40Z  5562 METROPCS, INC. 238      
410-808 5 BLTMMDCH40Z  5562 METROPCS, INC. 238      
410-808 6 BLTMMDCH40Z  5562 METROPCS, INC. 238      
410-808 7 BLTMMDCH40Z  5562 METROPCS, INC. 238      
410-808 8 BLTMMDCH40Z  5562 METROPCS, INC. 238      
410-808 9 BLTMMDCH40Z  5562 METROPCS, INC. 238      
410-877 A BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-877 0 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-877 1 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-877 2 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-877 3 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-877 4 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-08-07   
410-877 5 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-08-07   
410-877 6 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-03-03   
410-877 7 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-877 8 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-877 9 BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-937 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-243 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-299 A   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-299 0   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-06-25   
443-299 1   876D ONVOY, LLC - MD 238   2025-10-12   
443-299 2 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2004-11-04   
443-299 3   145J TERRA NOVA TELECOM INC. 238   2021-01-27   
443-299 4   145J TERRA NOVA TELECOM INC. 238   2025-05-16   
443-299 5 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2024-07-07   
443-299 6 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-299 7 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-01-02   
443-299 8 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-01-02   
443-299 9 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-01-02   
443-417 A BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-417 0 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-11-03   
443-417 1 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-08-13   
443-417 2   829J PAETEC ITEL, LLC 238   2003-04-01   
443-417 3 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-11-03   
443-417 4 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-08-19   
443-417 5 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-08-03   
443-417 6 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-03-08   
443-417 7 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-01-08   
443-417 8 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-07-05   
443-417 9 BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-504 A   829J PAETEC ITEL, LLC 238   2025-04-01   
443-504 0   829J PAETEC ITEL, LLC 238      

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

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