I cannot find it anywhere in the Ingham county or Michigan railroad database. I frequently hear what sounds like simplex base/mobile CSX stuff, sounds like dispatchers and trains talking. I'm not a rail expert by any means and can't be much more specific than that. Sounds kind of casual. Anyone know what it is more specifically? No FCC licenses found for the frequency in the county. I believe I have heard them mention Lansing and Jackson, and I have picked this up with the mobile radio in my car mostly in northwest Ingham county.