Here in EU its a law that your ISP needs to keep it for that long. However, they won't just give it to you I am afraid. It has to be an court order to reveal it (at least where I live)
You should get in touch with your ISP and hear what they say.
Also, make sure to search properly your google account (if you have one)
because they keep everything for sure. I even found my own voice search from 2 years ago! that was a moment for me to stop using google services. But you might be lucky now so google it! See how to search the history google keeps on you. It might be just there. (unless you are interested about someone's else history....)