Local Calling Guide

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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 285

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-285 A Columbia MD CLMAMDSRRS0  9212 VERIZON MARYLAND, INC. 238      
443-285 0 Columbia MD CLMAMDSRRS0  9212 VERIZON MARYLAND, INC. 238      
443-285 1 Columbia MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2004-04-20   
443-285 2 Columbia MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2004-09-29   
443-285 3 Columbia MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2004-08-19   
443-285 4 Columbia MD CLMAMDSRRS0  9212 VERIZON MARYLAND, INC. 238      
443-285 5 Columbia MD CLMAMDSRRS0  9212 VERIZON MARYLAND, INC. 238      
443-285 6 Columbia MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-285 7 Columbia MD CLMAMDSRRS0  9212 VERIZON MARYLAND, INC. 238      
443-285 8 Columbia MD CLMAMDSRRS0  9212 VERIZON MARYLAND, INC. 238      
443-285 9 Columbia MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2004-09-29   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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