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: 402

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-402 A Edgewood MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-402 0 Edgewood MD   318J COMCAST IP PHONE, LLC 238   2006-05-21   
443-402 1 Edgewood MD   318J COMCAST IP PHONE, LLC 238   2006-05-21   
443-402 2 Edgewood MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2002-11-18   
443-402 3 Edgewood MD   876D ONVOY, LLC - MD 238   2012-10-07   
443-402 4 Edgewood MD   5562 METROPCS, INC. 238   2019-07-14   
443-402 5 Edgewood MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2014-06-06   
443-402 6 Edgewood MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2014-06-06   
443-402 7 Edgewood MD   508J CENTURYLINK COMMUNICATIONS, LLC 238   2013-10-01   
443-402 8 Edgewood MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2014-06-06   
443-402 9 Edgewood MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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