@blonded account registered on Instagram
It seems likely that Frank is using Instagram to share photos with his closest friends and family. The account, @blonded, is set to private, but followed by frank's mother Katonya, brother Ryan, and friends and collaborators like Buddy Ross, Ysham, Memo Guzmán, and Vegyn.
A /r/FrankOcean user dug up the profile for the model whose photo is being used for the account. The photo of Oliver Truelove can be found in issue 45 of 10 Men Magazine. What's more, another user found what could possibly be some saved photos from the account.