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.

Gracemont, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
405-966 A GRMTOKXARP0  1984 OKLAHOMA COMMUNICATION SYSTEM, INC. 536      
405-966 0 GRMTOKXARP0  1984 OKLAHOMA COMMUNICATION SYSTEM, INC. 536      
405-966 1 OKCYOKCEXJZ  624H ONVOY SPECTRUM, LLC 536   2025-01-22   
405-966 2 GRMTOKXARP0  1984 OKLAHOMA COMMUNICATION SYSTEM, INC. 536      
405-966 6 GRMTOKXARP0  1984 OKLAHOMA COMMUNICATION SYSTEM, INC. 536      
405-966 9 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2023-11-25   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.