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Cockeysville, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-229 A CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-316 A CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-316 0   9212 VERIZON MARYLAND, INC. 238      
410-316 1   4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2003-11-08   
410-316 2   9212 VERIZON MARYLAND, INC. 238      
410-316 3   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-316 4   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-316 5   9212 VERIZON MARYLAND, INC. 238      
410-316 6   071F BANDWIDTH.COM CLEC, LLC - MD 238   2018-08-20   
410-316 7   9212 VERIZON MARYLAND, INC. 238      
410-316 8   9212 VERIZON MARYLAND, INC. 238      
410-316 9   829J PAETEC ITEL, LLC 238   2004-01-31   
410-329 A CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-329 0   5562 METROPCS, INC. 238   2016-06-11   
410-329 1   9212 VERIZON MARYLAND, INC. 238      
410-329 2   9212 VERIZON MARYLAND, INC. 238      
410-329 3   9212 VERIZON MARYLAND, INC. 238      
410-329 4   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2019-03-09   
410-329 5   9212 VERIZON MARYLAND, INC. 238      
410-329 6   9212 VERIZON MARYLAND, INC. 238      
410-329 7   9212 VERIZON MARYLAND, INC. 238      
410-329 8   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-08-13   
410-329 9   9212 VERIZON MARYLAND, INC. 238      
410-403 A BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-403 0   876D ONVOY, LLC - MD 238   2016-03-28   
410-403 1   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-403 2   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-403 3   876D ONVOY, LLC - MD 238   2016-03-09   
410-403 4   876D ONVOY, LLC - MD 238   2016-03-28   
410-403 5   876D ONVOY, LLC - MD 238   2024-04-26   
410-403 6   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2016-09-08   
410-403 7   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-19   
410-403 8   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-08-13   
410-403 9   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-498 A   829J PAETEC ITEL, LLC 238   2025-04-01   
410-498 0   829J PAETEC ITEL, LLC 238      
410-498 1   829J PAETEC ITEL, LLC 238      
410-498 2   829J PAETEC ITEL, LLC 238      
410-498 3   829J PAETEC ITEL, LLC 238      
410-498 4   071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-09-04   
410-498 5   876D ONVOY, LLC - MD 238   2020-07-05   
410-498 6   876D ONVOY, LLC - MD 238   2020-07-05   
410-498 7   876D ONVOY, LLC - MD 238   2020-07-05   
410-498 8   876D ONVOY, LLC - MD 238   2020-07-05   
410-498 9   829J PAETEC ITEL, LLC 238      
410-527 A CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-568 A BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-568 0   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-568 1   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-568 2   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-568 3   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-568 4   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-568 5   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2019-03-09   
410-568 6   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-568 7   829J PAETEC ITEL, LLC 238   2005-10-07   
410-568 8   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-04-06   
410-568 9   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-04-06   
410-584 A CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-584 0   9212 VERIZON MARYLAND, INC. 238      
410-584 1   9212 VERIZON MARYLAND, INC. 238      
410-584 2   9212 VERIZON MARYLAND, INC. 238      
410-584 3   876D ONVOY, LLC - MD 238   2024-03-08   
410-584 4   9212 VERIZON MARYLAND, INC. 238      
410-584 5   876D ONVOY, LLC - MD 238   2024-03-08   
410-584 6   9212 VERIZON MARYLAND, INC. 238      
410-584 7   9212 VERIZON MARYLAND, INC. 238      
410-584 8   9212 VERIZON MARYLAND, INC. 238      
410-584 9   9212 VERIZON MARYLAND, INC. 238      
410-628 A CYVLMDCKDS0  9212 VERIZON MARYLAND, INC. 238      
410-628 0   9212 VERIZON MARYLAND, INC. 238      
410-628 1   9212 VERIZON MARYLAND, INC. 238      
410-628 2   9212 VERIZON MARYLAND, INC. 238      
410-628 3   9212 VERIZON MARYLAND, INC. 238      
410-628 4   9212 VERIZON MARYLAND, INC. 238      
410-628 5   9212 VERIZON MARYLAND, INC. 238      
410-628 6   9212 VERIZON MARYLAND, INC. 238      
410-628 7   9212 VERIZON MARYLAND, INC. 238      
410-628 8   9212 VERIZON MARYLAND, INC. 238      
410-628 9   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-08-13   
410-666 A CYVLMDCKDS0  9212 VERIZON MARYLAND, INC. 238      
410-667 A CYVLMDCKDS0  9212 VERIZON MARYLAND, INC. 238      
410-683 A CYVLMDCKDS0  9212 VERIZON MARYLAND, INC. 238      
410-683 0   9212 VERIZON MARYLAND, INC. 238      
410-683 1   9212 VERIZON MARYLAND, INC. 238      
410-683 2   9212 VERIZON MARYLAND, INC. 238      
410-683 3   9212 VERIZON MARYLAND, INC. 238      
410-683 4   9212 VERIZON MARYLAND, INC. 238      
410-683 5   071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-09-28   
410-683 6   9212 VERIZON MARYLAND, INC. 238      
410-683 7   9212 VERIZON MARYLAND, INC. 238      
410-683 8   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-08-13   
410-683 9   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-08-13   
410-771 A CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-773 A CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-773 0   2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238   2003-12-25   
410-773 1   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-773 2   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-773 3   9212 VERIZON MARYLAND, INC. 238      
410-773 4   9212 VERIZON MARYLAND, INC. 238      
410-773 5   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      

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

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