American Express Membership Rewards - Old version to transfer points out of MR program?

Not to long ago I signed up to a bunch of programs through amex, and I could see my account #'s to each of those programs.

I can't seem to find it now, anyone know what I am talking about?

Thanks

The problem may be that you have only an American Express credit card, such as Blue, The Knot or The Nest. These cards participate in Membership Rewards Express and are no longer eligible to transfer points to airline or hotel programs.

If you have a Green, Gold, Platinum or Centurion charge card you would be enrolled in the full Membership Rewards program, or Membership Rewards First, which do allow transfers.

I have a blue card, and a plat charge card. Can't find it ... :(

Go to www.membershiprewards.com and log in. Click on "Points Summary" over the search box. It should show all your linked programs.

Go to www.membershiprewards.com and log in. Click on "Points Summary" over the search box. It should show all your linked programs.
When I do that I see a bunch of my linked programs, but one is not identified!

I see several hotel programs and several airline programs, but then there's one program that shows as a blank (just the dash and then shows a 7-digit account number). I've had these links set up for not much more than a year. Is there some linkable partner that's left the program that I could have had in there that would now such up as blank?

...one program that shows as a blank (just the dash and then shows a 7-digit account number).

I also had this, assumed (but did not verify) that it was a migration tool used by American Express. Deleted it with no apparent ill effects.