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
443-837 A Annapolis MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238      
443-837 0 Annapolis MD   2589 US LEC OF MARYLAND, INC. 238      
443-837 1 Annapolis MD   2589 US LEC OF MARYLAND, INC. 238      
443-837 2 Annapolis MD   2589 US LEC OF MARYLAND, INC. 238      
443-837 3 Annapolis MD   2589 US LEC OF MARYLAND, INC. 238      
443-837 4 Annapolis MD   6664 SPRINT SPECTRUM L.P. 238   2006-04-13   
443-837 5 Annapolis MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
443-837 6 Annapolis MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2008-02-17   
443-837 7 Annapolis MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-02-26   
443-837 8 Annapolis MD   6664 SPRINT SPECTRUM L.P. 238   2007-12-20   
443-837 9 Annapolis MD   2589 US LEC OF MARYLAND, INC. 238      

Last updated: Wed, 05 Feb 2020 02:15:44 UTC

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