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: 331

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-331 A Taneytown MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-331 0 Taneytown MD   145J TERRA NOVA TELECOM INC. 238   2024-02-15   
443-331 1 Taneytown MD   829J PAETEC ITEL, LLC 238      
443-331 2 Taneytown MD   876D ONVOY, LLC - MD 238   2024-03-03   
443-331 3 Taneytown MD   318J COMCAST IP PHONE, LLC 238   2014-11-25   
443-331 4 Taneytown MD   876D ONVOY, LLC - MD 238   2016-03-21   
443-331 5 Taneytown MD   876D ONVOY, LLC - MD 238   2016-03-21   
443-331 7 Taneytown MD   508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-25   
443-331 8 Taneytown MD   8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-07-17   
443-331 9 Taneytown MD   876D ONVOY, LLC - MD 238   2016-04-08   

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

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