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
443-446 A Queenstown MD ESTNMDES5MD  7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 242      
443-446 1 Queenstown MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2019-05-03   
443-446 2 Queenstown MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2019-03-29   
443-446 4 Queenstown MD   876D ONVOY, LLC - MD 242   2018-09-13   
443-446 6 Queenstown MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2019-03-29   
443-446 7 Queenstown MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2019-03-29   
443-446 8 Queenstown MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2019-05-03   
443-446 9 Queenstown MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2019-05-03   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

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