Mountain Air Cargo Tracking Mistake

I have been noticing lately that instead of their MTN code, it shows TN, and this is been happening since March 18th Here is an example flightaware.com/live/flight/TN8355. Who should I let know about this?

I’m looking into it. The timing is curious, but their flights have used TN instead of MTN for periods of time in the past (2005).