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
443-595 A Sparks-Glencoe MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-595 0 Sparks-Glencoe MD   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-595 1 Sparks-Glencoe MD   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-595 2 Sparks-Glencoe MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-595 3 Sparks-Glencoe MD   2697 CTC COMMUNICATIONS CORP. - MD 238   2006-07-01   
443-595 4 Sparks-Glencoe MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-09-28   
443-595 6 Sparks-Glencoe MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-02-18   
443-595 7 Sparks-Glencoe MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-05-20   
443-595 8 Sparks-Glencoe MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2012-05-26   
443-595 9 Sparks-Glencoe MD   876D ONVOY, LLC - MD 238   2012-10-08   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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