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: 741

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-741 A Columbia MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
443-741 0 Columbia MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238   2011-08-08   
443-741 1 Columbia MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-05-20   
443-741 2 Columbia MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-08-20   
443-741 3 Columbia MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2011-05-13   
443-741 4 Columbia MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2012-05-05   
443-741 5 Columbia MD   5562 METROPCS, INC. 238   2013-06-14   
443-741 6 Columbia MD   5562 METROPCS, INC. 238   2013-06-14   
443-741 7 Columbia MD   5562 METROPCS, INC. 238   2014-08-01   
443-741 8 Columbia MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-741 9 Columbia MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   

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

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