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: 595

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-595 A Sparks-Glencoe MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2025-04-14   
443-595 3 Sparks-Glencoe MD   829J PAETEC ITEL, LLC 238   2006-07-01   
443-595 4 Sparks-Glencoe MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-09-28   
443-595 6 Sparks-Glencoe MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-02-18   
443-595 7 Sparks-Glencoe MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-05-20   
443-595 8 Sparks-Glencoe MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2012-05-26   
443-595 9 Sparks-Glencoe MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-08   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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