How to see old registered devices?

If you are asking about devices that are associated with your Apple ID, for the purpose of using content purchased from iTunes Store or access to subscription services, I don't think there's a list of previously associated devices that are no longer associated. I don't know what you mean by "disabled" devices.

If you are asking about "old registered devices" on your Apple ID support profile, they should still be there. This list is mainly for the purpose of servicing support. You can check here

https://supportprofile.apple.com/

Which devices are you trying to find? From what device are you trying to view them?

I ask because we may be able to move you to a more active and appropriate forum. Example: if you want to find devices that are authorized through iTunes, the iTunes forum is the place to get a lot of help.

In spite of the non-intuitive labeling, this forum is for pre-1998 Apple products and anything posted here gets very few eyes on it. Also pre-1988 Apple products have never been tracked online as far as I know.

Not sure on that. I will ask the Hosts to move you to the iPad forums. There should be people there who can help. IT's far better that here!

If the device was on your Apple ID support profile previously, it would still be there. It provides some of that info. Check the link I provided in previous reply.

Mike,

I asked the Hosts yesterday to move this to a more active forum but they have not responded. Seems to be happening a lot the last couple of days. If they do get around to moving it, you should get an e-mail telling you where they decided to put it.

With the inaction of the Hosts I hope the answers you have received so far from the others are helping.