Yes. I know to keep my AC below the cruising altitude of the AC going and coming from the airport. Plus I don’t have to contact ATC unless I am doing a paid job. Around my house I just practice maneuvering and smooth cinematic filming.
If you’re flying within 5 miles of center of airport flying as a hobbyist, part 336, you need to contact ATC. You can use AirMap AirMap for Drones to get number. You can use this site ArcGIS Web Application to see the altitude restrictions in your intended flight location. Be safe my friend.
Alex