How can I know the Insteon address of my 8 button mini remote?

In the process of setting everything up in HA now that Insteon is gone. Most everything I’ve resolved or can see how to resolve. But I have one 8 button mini remote (model 2342-2). It has the address “taped” onto the remote. But over the years, the address has worn off. How can I find the address of the remote to use with HA?

… time passes …

With my last re-adding of Insteon to HA, it DID pick up the 8 button remote.

I tried to program a button response according to docs, but it didn’t work.

Anybody get this to work successfully?