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

NXX: 639

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
775-639 A Owyhee NV BOISIDPZ0MD  516J TON80 COMMUNICATIONS, LLC 652      
775-639 4 Owyhee NV BOISIDMAX2X  4805 LEVEL 3 COMMUNICATIONS, LLC - NV 652   2023-01-27   
775-639 7 Owyhee NV BOISIDPZ0MD  516J TON80 COMMUNICATIONS, LLC 652   2022-04-05   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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