Telcos was a planet located somewhere in the space of the galaxy's Alpha or Beta Quadrants, in orbit of the Telcosus star system, at coordinates 2.57N 0.29W.

In the 23rd century, Telcos was home to a Andorian colony, a noted center of mining and agriculture. By reference stardate 2/2306.01, the world had a population of 10.46 billion individuals, mostly Andorian, and the government was a full-status colonial member of the Federation. (FASA RPG module: The Federation)