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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 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-04-11   
410-209 1 BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-209 2 BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-209 3 BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-209 4 BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-209 5 BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-209 6 BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-209 7 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-04-11   
410-209 8 BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-209 9 CLMAMDORGT0  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 BLTMMDCHDMD  551G NUSO, LLC 238   2018-07-23   
410-237 1 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-02-14   
410-237 2 BLTMMDCH1DD  9212 VERIZON MARYLAND, INC. 238      
410-237 3 BLTMMDCH1DD  9212 VERIZON MARYLAND, INC. 238      
410-237 4   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
410-237 5 BLTMMDCH1DD  9212 VERIZON MARYLAND, INC. 238      
410-237 6 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2017-06-02   
410-237 7 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2017-12-01   
410-237 8 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2017-12-01   
410-237 9 CLMAMDORGT0  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 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-240 1 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-240 2 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-240 3 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-240 4 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-240 5 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-240 6 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-240 7 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-240 8 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-11-20   
410-240 9 BLTMMDCH40Z  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 BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 1 BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 2 BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 3 BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 4 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2010-08-09   
410-246 5 BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 6 BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 7 BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 8 BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-246 9 BLTOMDKHDS0  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 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 1 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 2 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 3 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 4 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 5 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 6 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 7 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 8 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-258 9 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-261 A BLTMMDUVDS0  9212 VERIZON MARYLAND, INC. 238      
410-261 0 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-02-14   
410-261 1 BLTMMDUVDS0  9212 VERIZON MARYLAND, INC. 238      
410-261 2 BLTMMDUVDS0  9212 VERIZON MARYLAND, INC. 238      
410-261 3 BLTMMDUVDS0  9212 VERIZON MARYLAND, INC. 238      
410-261 4 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-05-04   
410-261 5 BLTMMDUVDS0  9212 VERIZON MARYLAND, INC. 238      
410-261 6 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-02-24   
410-261 7 BLTMMDUVDS0  9212 VERIZON MARYLAND, INC. 238      
410-261 8 BLTMMDUVDS0  9212 VERIZON MARYLAND, INC. 238      
410-261 9 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-09-19   
410-262 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 0 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 1 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 2 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 3 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 4 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 5 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 6 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 7 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 8 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-262 9 BLTMMDCH40Z  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 BLTMMDCH1DD  9212 VERIZON MARYLAND, INC. 238      
410-291 1 BLTMMDCHDMD  551G NUSO, LLC 238   2017-06-07   
410-291 2 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2017-11-10   

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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