It is available on the ITU website. You will have satellite names (which should be similar to what you'll see in space-track, most of the time). I believe you n

It is available on the ITU website. You will have satellite names (which should be similar to what you'll see in space-track, most of the time). I believe you need to pay to have access to those, but when you have a direct link to a specific satellite anybody can read it. Also note that this shows licences, not actual use. You can have a satellite licenced to a particular frequency but not using it.