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: 233

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-233 A Vienna MD SLBRMDSBX6Y  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
443-233 0 Vienna MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
443-233 1 Vienna MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
443-233 2 Vienna MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242      
443-233 3 Vienna MD   2593 CORE COMMUNICATIONS, INC.- MD 242      
443-233 4 Vienna MD   145J TERRA NOVA TELECOM INC. 242      
443-233 5 Vienna MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
443-233 6 Vienna MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242      
443-233 7 Vienna MD   2593 CORE COMMUNICATIONS, INC.- MD 242      
443-233 8 Vienna MD SLBRMD902MD  073H TELNYX LLC 242      
443-233 9 Vienna MD SLBRMDSBX6Y  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      

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

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