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: 216

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-216 A Dundalk MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-216 0 Dundalk MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-03-29   
443-216 1 Dundalk MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-06-26   
443-216 2 Dundalk MD   829J PAETEC ITEL, LLC 238   2001-11-02   
443-216 3 Dundalk MD   829J PAETEC ITEL, LLC 238   2001-11-02   
443-216 4 Dundalk MD   829J PAETEC ITEL, LLC 238   2001-11-02   
443-216 5 Dundalk MD   829J PAETEC ITEL, LLC 238   2001-11-02   
443-216 6 Dundalk MD   829J PAETEC ITEL, LLC 238   2001-11-02   
443-216 7 Dundalk MD   318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-216 8 Dundalk MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2019-07-13   
443-216 9 Dundalk MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-06-26   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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