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: 808 [Rate centres in NPA 808] [Dial plan for NPA 808]

NXX: 991

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
808-991 A Hilo HI   6529 T-MOBILE USA, INC. 834   2025-11-28   
808-991 7 Hilo HI   6529 T-MOBILE USA, INC. 834   2025-11-28   
808-991 8 Hilo HI   6529 T-MOBILE USA, INC. 834   2025-11-28   
808-991 9 Hilo HI   6529 T-MOBILE USA, INC. 834   2025-11-28   

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.