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: 322

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-322 A Towson MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-322 0 Towson MD   829J PAETEC ITEL, LLC 238      
443-322 1 Towson MD   829J PAETEC ITEL, LLC 238      
443-322 2 Towson MD   829J PAETEC ITEL, LLC 238      
443-322 3 Towson MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2020-06-04   
443-322 4 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-01   
443-322 5 Towson MD   829J PAETEC ITEL, LLC 238      
443-322 6 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-01   
443-322 7 Towson MD   829J PAETEC ITEL, LLC 238      
443-322 8 Towson MD   829J PAETEC ITEL, LLC 238      
443-322 9 Towson MD   829J PAETEC ITEL, LLC 238      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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