Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Topaz Lake, NV

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
775-266 A TPLKNVXARS5  4421 FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - NV 720      
775-266 1   4421 FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - NV 720      
775-266 2   811D UTILITY TELECOM GROUP, LLC - NV 720   2010-03-22   
775-266 3   4421 FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - NV 720      
775-266 4   4421 FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - NV 720      
775-266 5   516J TON80 COMMUNICATIONS, LLC 720   2022-04-11   
775-266 6   965H FRACTEL, LLC 720   2020-08-21   
775-266 8   075F BANDWIDTH.COM CLEC, LLC - NV 720   2008-12-01   
775-266 9   4421 FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - NV 720      
775-581 A RENONV126MD  4805 LEVEL 3 COMMUNICATIONS, LLC - NV 720      
775-581 0   4805 LEVEL 3 COMMUNICATIONS, LLC - NV 720      
775-581 1   145J TERRA NOVA TELECOM INC. 720   2025-07-07   
775-581 3   4805 LEVEL 3 COMMUNICATIONS, LLC - NV 720   2006-01-20   
775-581 4   4805 LEVEL 3 COMMUNICATIONS, LLC - NV 720   2005-07-26   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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