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: 280

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-280 A Sykesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-280 0 Sykesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-280 1 Sykesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-280 2 Sykesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-280 3 Sykesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-280 4 Sykesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-280 5 Sykesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-280 6 Sykesville MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-06-26   
443-280 7 Sykesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-280 8 Sykesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2014-10-01   
443-280 9 Sykesville MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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