The last few days, I noticed that the FBI frequencies for OKC had been strangely quiet. I didn't think there was a chance that they had gone digital, so I didn't bother to scan them for P25 signals. While on a road trip earlier today, I noticed that the FBI channels have gone P25 and are encrypted. I have yet to hear anything in the metro, but so far I've confirmed digital signals on 167.3125, 167.2375, and 167.3875. Also, I copied a NAC of 167 on 167.2375 and it was encrypted. I'll try to keep the database up to date on the progress but it appears they have gone completely P25.