From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
Planet Freeza (惑星 フリーザ, Wakusei Furiiza), or Planet Freeza No. 79 (惑星 フリーザ No. 79, Wakusei Furiiza No. 79; FUNimation "Planet Frieza"), is a planet Freeza rules.
Dragon Ball Z
Planet Freeza appeared briefly when Vegeta recovered there after he had returned from his battle on Planet Earth. The only residents seen on the planet were part of Freeza's Force. It also seemed to be a prominent base of operations for Freeza's Force.
Planet Freeza was never revisited by Freeza. Once it was captured, Freeza moved on to the next planet. In Son Goku's battle against Freeza, Planet Freeza was shown along with Freeza's Force. An alien who looked similar to Kewie asked the other soldiers if they supported Freeza.
- Planet Freeza looks very similar to Planet Kanassa. Planet Kanassa may have been renamed Planet Freeza after the Planet Elite Force exterminated the planet's residents.