Local Calling Guide

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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 343

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-343 A Millersville MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-343 0 Millersville MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-04-07   
443-343 1 Millersville MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238   2003-07-12   
443-343 2 Millersville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-02-13   
443-343 3 Millersville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-343 4 Millersville MD BLTQMD018MD  145J TERRA NOVA TELECOM INC. 238   2021-01-28   
443-343 5 Millersville MD BLTMMDCHW29  4716 PAETEC COMMUNICATIONS, INC. - MD 238   2006-05-20   
443-343 6 Millersville MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-05-22   
443-343 7 Millersville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2018-07-28   
443-343 8 Millersville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-01-09   
443-343 9 Millersville MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      

Last updated: Fri, 13 May 2022 22:16:13 UTC

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