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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-456 A Edgewood MD BLTMMDCHDS7  7421 AT&T LOCAL 238      
443-456 0 Edgewood MD   082H LOCAL ACCESS LLC - MD 238   2013-09-06   
443-456 3 Edgewood MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2013-05-12   
443-456 4 Edgewood MD   876D ONVOY, LLC - MD 238   2016-01-21   
443-456 5 Edgewood MD   082H LOCAL ACCESS LLC - MD 238   2016-10-14   
443-456 6 Edgewood MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2014-03-24   
443-456 7 Edgewood MD   7421 AT&T LOCAL 238      
443-456 8 Edgewood MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2017-05-29   
443-456 9 Edgewood MD   8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-11   

Last updated: Wed, 10 Apr 2019 01:22:05 UTC

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