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Baltimore, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
301-878 A BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-201 A XXXXXXXXXXX  9212 VERIZON MARYLAND, INC. 238      
410-207 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
410-209 A BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-209 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-04-11   
410-209 1   9212 VERIZON MARYLAND, INC. 238      
410-209 2   9212 VERIZON MARYLAND, INC. 238      
410-209 3   9212 VERIZON MARYLAND, INC. 238      
410-209 4   9212 VERIZON MARYLAND, INC. 238      
410-209 5   9212 VERIZON MARYLAND, INC. 238      
410-209 6   9212 VERIZON MARYLAND, INC. 238      
410-209 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-04-11   
410-209 8   9212 VERIZON MARYLAND, INC. 238      
410-209 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-04-11   
410-215 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
410-217 A BLTMMDCH1DD  9212 VERIZON MARYLAND, INC. 238      
410-218 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
410-223 A BLTMMDCHDS3  9212 VERIZON MARYLAND, INC. 238      
410-225 A BLTMMDMDDS0  9212 VERIZON MARYLAND, INC. 238      
410-230 A BLTMMDCHDS3  9212 VERIZON MARYLAND, INC. 238      
410-232 A HNVAMDAE3MD  6630 USA MOBILITY WIRELESS, INC. 238      
410-233 A BLTMMDEDRP0  9212 VERIZON MARYLAND, INC. 238      
410-234 A BLTMMDCHDS3  9212 VERIZON MARYLAND, INC. 238      
410-235 A BLTMMDUVDS0  9212 VERIZON MARYLAND, INC. 238      
410-237 A BLTMMDCH1DD  9212 VERIZON MARYLAND, INC. 238      
410-237 0   551G NUSO, LLC 238   2018-07-23   
410-237 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-02-14   
410-237 2   9212 VERIZON MARYLAND, INC. 238      
410-237 3   9212 VERIZON MARYLAND, INC. 238      
410-237 4   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
410-237 5   9212 VERIZON MARYLAND, INC. 238      
410-237 6   876D ONVOY, LLC - MD 238   2017-06-02   
410-237 7   876D ONVOY, LLC - MD 238   2017-12-01   
410-237 8   876D ONVOY, LLC - MD 238   2017-12-01   
410-237 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-02-14   
410-240 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-240 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-240 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-240 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-240 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-240 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-240 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-240 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-240 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-240 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-240 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-241 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
410-243 A BLTMMDUVDS0  9212 VERIZON MARYLAND, INC. 238      
410-244 A BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-246 A BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 0   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 1   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 2   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 3   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 4   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2010-08-09   
410-246 5   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 6   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 7   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 8   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 9   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-254 A BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      
410-258 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-261 A BLTMMDUVDS0  9212 VERIZON MARYLAND, INC. 238      
410-261 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-02-14   
410-261 1   9212 VERIZON MARYLAND, INC. 238      
410-261 2   9212 VERIZON MARYLAND, INC. 238      
410-261 3   9212 VERIZON MARYLAND, INC. 238      
410-261 4   876D ONVOY, LLC - MD 238   2016-05-04   
410-261 5   9212 VERIZON MARYLAND, INC. 238      
410-261 6   876D ONVOY, LLC - MD 238   2024-02-24   
410-261 7   9212 VERIZON MARYLAND, INC. 238      
410-261 8   9212 VERIZON MARYLAND, INC. 238      
410-261 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-09-19   
410-262 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 4   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-274 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
410-276 A BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-291 A BLTMMDCH1DD  9212 VERIZON MARYLAND, INC. 238      
410-291 0   9212 VERIZON MARYLAND, INC. 238      
410-291 1   551G NUSO, LLC 238   2017-06-07   
410-291 2   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2017-11-10   

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Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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