Can't remember where i bought my bitcoin

[caruso1337]

Hi everyone,

Just wondering if anyone could help me, i bought a significant amount of bitcoin in 2011 and have just found my login details on an old usb stick. I do not remember what exchange i used. Or where i bought it from.

I have the following information in my notepad file:

[username]
account no: xxxxxxxx
Your password: xxxxxxxxxxx
Your login PIN: xxxxx
Your master key: xxx

Does anyone know which exchange uses this combination to login? I have looked at as many exchanges as i can, i know that they might have changed since then.

Any help would be greatly appreciated.

[OneChain]

Bitstamp maybe?