That sounds like a side by side comparison job 
Which should be easy since it sounds like you have a subscription. But I'd start by looking at the before and after reason codes/factors to see if they changed or at least the order.
I had a score decrease when nothing else seemingly changed to find out that an old closed account was removed. For me it lowered my AAoA slightly but the likely culprit was that it changed the ratio of # of accounts reporting as it only affected my Fico 2 scores. This lead to a new revelation figured out by Birdman7 that closed accounts are considered in that metric. But I guess it could be the opposite for you if a closed account that was younger fell off and raised your AAoA to a known or unknown threshold.
@Anonymous wrote:I received notifcation from Experian today that there had been a change to my credit profile. I logged in and saw that it jumped 14 points, but no derogatories had been removed nor had there been any new activity. What could be the cause of that? (Not complaining, just a bit suprised! Hah!)
Perhaps you crossed an age threshold? New account 24 months old? Late payment 25 month's old? Not sure that those ages cause such a jump, or that these ages actually have any merit... but age changes, accounts being added/removed can effect score without showing an obvious reason.
