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.

Willow, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
580-287 A WLLWOKXARS1  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-287 0 WLLWOKXARS1  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-287 1 WLLWOKXARS1  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-287 2 WLLWOKXARS1  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-287 3 WLLWOKXARS1  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-287 5 WLLWOKXARS1  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-287 6 WLLWOKXARS1  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-287 7 WLLWOKXARS1  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-287 8 WLLWOKXARS1  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-287 9 WLLWOKXARS1  2025 SOUTHWEST OKLAHOMA TEL. CO. 536      
580-567 A ENIDOKKI0MD  6272 UNITED STATES CELLULAR - OK 536      
580-567 0 ENIDOKKI0MD  6272 UNITED STATES CELLULAR - OK 536      
580-567 5   6529 T-MOBILE USA, INC. 536   2025-05-05   
580-567 7   5562 METROPCS, INC. 536   2025-05-08   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.