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: 234

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-234 A Snow Hill MD   829J PAETEC ITEL, LLC 242   2025-04-01   
443-234 0 Snow Hill MD   876D ONVOY, LLC - MD 242   2019-03-04   
443-234 1 Snow Hill MD   876D ONVOY, LLC - MD 242   2021-03-05   
443-234 2 Snow Hill MD   829J PAETEC ITEL, LLC 242      
443-234 3 Snow Hill MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242   2016-05-06   
443-234 4 Snow Hill MD   145J TERRA NOVA TELECOM INC. 242   2024-02-15   
443-234 5 Snow Hill MD   318J COMCAST IP PHONE, LLC 242   2006-07-31   
443-234 6 Snow Hill MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-06-17   
443-234 7 Snow Hill MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-06-17   
443-234 8 Snow Hill MD   876D ONVOY, LLC - MD 242   2017-04-14   
443-234 9 Snow Hill MD   876D ONVOY, LLC - MD 242   2019-03-04   

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

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