Color Codes and Time Slots are set by the repeater or hotspot owner, so we need a little more information:
Are you trying to get in via a personal hotspot, or through a local repeater?
The ZumSpot hotspots running Pi-Star are set to use Color Code 1, Timeslot 2 by default. Most people don't change that.
For repeaters, it depends on how the repeater owner set it up.