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: 420

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-420 A Ellicott City MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-420 1 Ellicott City MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-420 2 Ellicott City MD BLTMMDCHFMD  5562 METROPCS, INC. 238      
443-420 3 Ellicott City MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-420 6 Ellicott City MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-420 7 Ellicott City MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-420 8 Ellicott City MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-420 9 Ellicott City MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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