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Baltimore, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-499 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-499 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-499 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-499 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-500 A BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-500 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-04-07   
410-500 1   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-04-07   
410-500 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-04-07   
410-500 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-04-07   
410-500 4   829J PAETEC ITEL, LLC 238   2005-05-25   
410-500 5   829J PAETEC ITEL, LLC 238   2005-05-25   
410-500 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-07-14   
410-500 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-07-14   
410-500 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-07-14   
410-500 9   876D ONVOY, LLC - MD 238   2016-03-26   
410-502 A BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-516 A BLTMMDUVDS0  9212 VERIZON MARYLAND, INC. 238      
410-516 0   9212 VERIZON MARYLAND, INC. 238      
410-516 1   9212 VERIZON MARYLAND, INC. 238      
410-516 2   9212 VERIZON MARYLAND, INC. 238      
410-516 3   9212 VERIZON MARYLAND, INC. 238      
410-516 4   9212 VERIZON MARYLAND, INC. 238      
410-516 5   9212 VERIZON MARYLAND, INC. 238      
410-516 6   9212 VERIZON MARYLAND, INC. 238      
410-516 7   9212 VERIZON MARYLAND, INC. 238      
410-516 8   9212 VERIZON MARYLAND, INC. 238      
410-516 9   9212 VERIZON MARYLAND, INC. 238   2002-03-13   
410-522 A BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-522 0   9212 VERIZON MARYLAND, INC. 238      
410-522 1   9212 VERIZON MARYLAND, INC. 238      
410-522 2   9212 VERIZON MARYLAND, INC. 238      
410-522 3   9212 VERIZON MARYLAND, INC. 238      
410-522 4   9212 VERIZON MARYLAND, INC. 238      
410-522 5   9212 VERIZON MARYLAND, INC. 238      
410-522 6   9212 VERIZON MARYLAND, INC. 238      
410-522 7   9212 VERIZON MARYLAND, INC. 238      
410-522 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-09-15   
410-522 9   9212 VERIZON MARYLAND, INC. 238      
410-523 A BLTMMDMDDS0  9212 VERIZON MARYLAND, INC. 238      
410-525 A ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-525 0   9212 VERIZON MARYLAND, INC. 238      
410-525 1   9212 VERIZON MARYLAND, INC. 238      
410-525 2   9212 VERIZON MARYLAND, INC. 238      
410-525 3   9212 VERIZON MARYLAND, INC. 238      
410-525 4   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2015-08-16   
410-525 5   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2015-05-08   
410-525 6   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2015-08-16   
410-525 7   2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238   2016-01-31   
410-525 8   9212 VERIZON MARYLAND, INC. 238      
410-525 9   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
410-528 A BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-528 0   9212 VERIZON MARYLAND, INC. 238      
410-528 1   9212 VERIZON MARYLAND, INC. 238      
410-528 2   9212 VERIZON MARYLAND, INC. 238      
410-528 3   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-09-15   
410-528 4   9212 VERIZON MARYLAND, INC. 238      
410-528 5   9212 VERIZON MARYLAND, INC. 238      
410-528 6   9212 VERIZON MARYLAND, INC. 238      
410-528 7   9212 VERIZON MARYLAND, INC. 238      
410-528 8   9212 VERIZON MARYLAND, INC. 238      
410-528 9   9212 VERIZON MARYLAND, INC. 238      
410-532 A BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238      
410-534 A BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-534 0   9212 VERIZON MARYLAND, INC. 238      
410-534 1   9212 VERIZON MARYLAND, INC. 238      
410-534 2   9212 VERIZON MARYLAND, INC. 238      
410-534 3   9212 VERIZON MARYLAND, INC. 238      
410-534 4   9212 VERIZON MARYLAND, INC. 238      
410-534 5   9212 VERIZON MARYLAND, INC. 238      
410-534 6   9212 VERIZON MARYLAND, INC. 238      
410-534 7   9212 VERIZON MARYLAND, INC. 238      
410-534 8   9212 VERIZON MARYLAND, INC. 238      
410-534 9   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
410-537 A BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-537 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-09-23   
410-537 1   9212 VERIZON MARYLAND, INC. 238      
410-537 2   9212 VERIZON MARYLAND, INC. 238      
410-537 3   9212 VERIZON MARYLAND, INC. 238      
410-537 4   9212 VERIZON MARYLAND, INC. 238      
410-537 5   9212 VERIZON MARYLAND, INC. 238      
410-537 6   9212 VERIZON MARYLAND, INC. 238      
410-537 7   9212 VERIZON MARYLAND, INC. 238      
410-537 8   9212 VERIZON MARYLAND, INC. 238      
410-537 9   829J PAETEC ITEL, LLC 238   2016-02-01   
410-539 A BLTMMDCHDS3  9212 VERIZON MARYLAND, INC. 238      
410-542 A BLTMMDLBDS0  9212 VERIZON MARYLAND, INC. 238      
410-545 A BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-547 A BLTMMDCHDS3  9212 VERIZON MARYLAND, INC. 238      
410-550 A BLTMMDKMRS0  9212 VERIZON MARYLAND, INC. 238      
410-554 A BLTMMDUVDS0  9212 VERIZON MARYLAND, INC. 238      
410-558 A BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-558 0   9212 VERIZON MARYLAND, INC. 238      
410-558 1   9212 VERIZON MARYLAND, INC. 238      
410-558 2   9212 VERIZON MARYLAND, INC. 238      
410-558 3   9212 VERIZON MARYLAND, INC. 238      
410-558 4   9212 VERIZON MARYLAND, INC. 238      
410-558 5   9212 VERIZON MARYLAND, INC. 238      
410-558 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2005-01-31   
410-558 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-09-23   
410-558 8   9212 VERIZON MARYLAND, INC. 238      

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

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