I don't suppose anyone has tried to deduce allcoin's bitcoin wallet addresses from the blockchain to see if the money is still there?

I have deposit addresses at allcoin of:

1F38dRunLasAYM6x9yWDxFEM1eUv8qaFTx for BTC (I have LTC and XRP addresses too)

So looking at:
https://blockchain.info/address/1F38dRunLasAYM6x9yWDxFEM1eUv8qaFTx

It would seem reasonable that:
https://blockchain.info/address/1tsK4jdcUMmDCX74qZcjHyjHUwuQad4Bg

is an Allcoin address - n'est pas? (volumes seem about right for a small exchange)

But one of many - so is it a pointless exercise?