Oh, maybe this is what I had as a reference.
Maybe it was a perl script.  Thanks all.

   List membership summary for selected servers known to
      [log in to unmask] on 19 Feb 2003 12:23:49

                         Number of lists   Membership count
Nodeid                   Public    Total   Public     Total
------                   ------    -----   ------     -----
LISTS.EDU                    20     1360    13998    272496