Frequency-133.175

[nashscan]

I've been looking through the internet, the FCC database, and AirNav for an hour now, trying to find out what I'm hearing. I'm just getting started in aircraft monitoring, and need help finding out what I'm hearing. I keep hearing pilots giving their altitude on 133.175, but everytime I try to put this frequency into a search box, it turns up nothing. I'm in Nashville, TN.

 

[zguy1243]

133.175 Is Atlanta center at Chattanooga TN. It is also paired with 132.05 124.875 126.675 and UHF 299.2 363.1 270.6