Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 775 [Rate centres in NPA 775] [Dial plan for NPA 775]

NXX: 538

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
775-538 A Imlay NV IMLYNV12RS0  9742 NEVADA BELL 720      
775-538 0 Imlay NV RENONV127MD  029F ONVOY, LLC - NV 720   2017-04-10   
775-538 1 Imlay NV IMLYNV12RS0  9742 NEVADA BELL 720      
775-538 2 Imlay NV RENONV029MD  075F BANDWIDTH.COM CLEC, LLC - NV 720   2009-01-11   
775-538 3 Imlay NV RENONV126MD  4805 LEVEL 3 COMMUNICATIONS, LLC - NV 720   2003-05-11   
775-538 4 Imlay NV RENONV126MD  4805 LEVEL 3 COMMUNICATIONS, LLC - NV 720   2005-07-26   
775-538 5 Imlay NV RENONV029MD  075F BANDWIDTH.COM CLEC, LLC - NV 720   2010-02-18   
775-538 6 Imlay NV RENONV029MD  075F BANDWIDTH.COM CLEC, LLC - NV 720   2013-06-23   
775-538 7 Imlay NV IMLYNV12RS0  9742 NEVADA BELL 720      
775-538 8 Imlay NV RENONV029MD  075F BANDWIDTH.COM CLEC, LLC - NV 720   2020-04-09   
775-538 9 Imlay NV RENONV12FMD  508J CENTURYLINK COMMUNICATIONS, LLC 720   2017-06-30   

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.