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: 728

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-728 A Berlin MD SLBRMDSBDC0  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
443-728 0 Berlin MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
443-728 1 Berlin MD SLBRMDSBDC0  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
443-728 2 Berlin MD SLBRMDSBDC0  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
443-728 3 Berlin MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
443-728 4 Berlin MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
443-728 5 Berlin MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
443-728 6 Berlin MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
443-728 7 Berlin MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
443-728 8 Berlin MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   
443-728 9 Berlin MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-19   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

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