Are you asking about ground crew frequencies?
If you are, those are in the 460.650 to 461.000/465.650 to 466.000 MHz ranges.
If you go to
Site / Frequency Query on the FCC website
Put in your state, the county your airport is in, 460.650 - 461.000 MHz for your search range [465.650 -466.000 for repeater inputs and/or simplex], then click "submit query"
You'll get frequencies and airlines.
If I misunderstood your request, I apologize.