Trillius Prime

From Memory Alpha, the free Star Trek reference.

Trillius Prime was one of the regular destinations of the Earth Cargo Service ships in the 22nd century. Travis Mayweather visited this planet in the sixth grade. It took three years for his parents' spaceship to get there. (ENT: "Broken Bow")

It is possible that this is another name for the Trill homeworld, as with "Andoria" and "Andor," which may be interchangeable. The Star Trek: Star Charts make this assumption, but nothing has been confirmed in canon sources.