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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-230 A Odenton MD   2697 CTC COMMUNICATIONS CORP. - MD 238      
443-230 1 Odenton MD   2697 CTC COMMUNICATIONS CORP. - MD 238      
443-230 3 Odenton MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2014-07-04   
443-230 4 Odenton MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2016-09-08   
443-230 5 Odenton MD   876D ONVOY, LLC - MD 238   2016-03-29   
443-230 6 Odenton MD   5562 METRO PCS, INC. 238   2016-11-17   
443-230 7 Odenton MD   7575 CENTURYLINK COMMUNICATIONS LLC 238   2014-06-25   
443-230 8 Odenton MD   082H LOCAL ACCESS LLC - MD 238   2016-01-04   
443-230 9 Odenton MD   082H LOCAL ACCESS LLC - MD 238   2015-03-23   

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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