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: 328

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-328 A Sykesville MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-328 0 Sykesville MD   876D ONVOY, LLC - MD 238   2021-04-29   
443-328 1 Sykesville MD   2697 CTC COMMUNICATIONS CORP. - MD 238      
443-328 2 Sykesville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
443-328 3 Sykesville MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-22   
443-328 4 Sykesville MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-22   
443-328 5 Sykesville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2015-10-16   
443-328 6 Sykesville MD   318J COMCAST IP PHONE LLC 238   2014-01-26   
443-328 7 Sykesville MD   508J CENTURYLINK COMMUNICATIONS LLC 238   2014-06-25   
443-328 8 Sykesville MD   082H LOCAL ACCESS LLC - MD 238   2016-05-31   
443-328 9 Sykesville MD   082H LOCAL ACCESS LLC - MD 238   2015-03-21   

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

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