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: 266

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-266 A Glenwood MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-266 0 Glenwood MD BLTMMDCHXMX  506J TWILIO INTERNATIONAL, INC. 238   2020-12-26   
443-266 1 Glenwood MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-266 2 Glenwood MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-01-04   
443-266 3 Glenwood MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-06-04   
443-266 4 Glenwood MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-266 5 Glenwood MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2014-03-31   
443-266 6 Glenwood MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-21   
443-266 7 Glenwood MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-266 8 Glenwood MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2016-07-21   
443-266 9 Glenwood MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-07   

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

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