Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 832

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-832 A Columbia MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-832 0 Columbia MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-28   
443-832 1 Columbia MD   2589 US LEC OF MARYLAND, INC. 238   2009-10-26   
443-832 2 Columbia MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2009-11-13   
443-832 3 Columbia MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-08-15   
443-832 4 Columbia MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-832 5 Columbia MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-28   
443-832 6 Columbia MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2013-07-21   
443-832 7 Columbia MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-11-01   
443-832 8 Columbia MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-07-15   
443-832 9 Columbia MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-07-15   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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