Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Sunbright, TN

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
423-628 A SNBRTNXARS0  0565 HIGHLAND TEL. COOP, INC. 474      
423-936 A KNVLTNMAYHX  318J COMCAST IP PHONE, LLC 474   2024-07-05   
423-936 1 KNVLTNMAYHX  318J COMCAST IP PHONE, LLC 474   2024-07-05   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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