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.

Duke, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
580-679 A DUKEOKXADS0  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-679 0 DUKEOKXADS0  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-679 1 DUKEOKXADS0  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-679 2 DUKEOKXADS0  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-679 3 DUKEOKXADS0  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-679 4 ENIDOKKI0MD  6272 UNITED STATES CELLULAR - OK 536      
580-679 5 DUKEOKXADS0  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-679 6 DUKEOKXADS0  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-679 7 DUKEOKXADS0  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-679 8 DUKEOKXADS0  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-679 9 DUKEOKXADS0  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-841 A ENIDOKKI0MD  6272 UNITED STATES CELLULAR - OK 536      
580-841 0 ENIDOKKI0MD  6272 UNITED STATES CELLULAR - OK 536      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.