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
443-536 A Westminster MD HNVAMDAYCM2  6664 SPRINT SPECTRUM L.P. 238      
443-536 0 Westminster MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-12-10   
443-536 1 Westminster MD   6664 SPRINT SPECTRUM L.P. 238      
443-536 2 Westminster MD   6664 SPRINT SPECTRUM L.P. 238   2005-01-18   
443-536 3 Westminster MD   6664 SPRINT SPECTRUM L.P. 238      
443-536 4 Westminster MD   6664 SPRINT SPECTRUM L.P. 238   2007-08-22   
443-536 5 Westminster MD   6664 SPRINT SPECTRUM L.P. 238      
443-536 6 Westminster MD   6664 SPRINT SPECTRUM L.P. 238      
443-536 7 Westminster MD   6664 SPRINT SPECTRUM L.P. 238   2007-08-22   
443-536 8 Westminster MD   6664 SPRINT SPECTRUM L.P. 238   2006-06-07   
443-536 9 Westminster MD   6664 SPRINT SPECTRUM L.P. 238      

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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