Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 292

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-292 A Crofton MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-292 0 Crofton MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-03-29   
443-292 1 Crofton MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2006-07-31   
443-292 2 Crofton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-10-14   
443-292 3 Crofton MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238   2007-10-03   
443-292 4 Crofton MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-292 5 Crofton MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-01-25   
443-292 6 Crofton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-09-04   
443-292 7 Crofton MD PIVLMDPKQMD  9170 BROADVIEW NETWORKS, INC. - MD 238   2010-10-22   
443-292 8 Crofton MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-12-29   
443-292 9 Crofton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-06-15   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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