(Timothy J. Lee) wrote:

I have seen a few airplanes that were painted white with "Star Alliance"
on the fuselage and the Star Alliance logo on the tail. There was no
other airline identification painted on the airplanes. Who actually
operates these airplanes?

If you look closely at the livery, you will see the actual operator listed.
IIRC, each Star Alliance operator has one plane painted this way.