Redeem Your United Mileage Plus® Miles For A Magazinesubscription Checking United Mileages?

Checking United Mileages? - redeem your united mileage plus® miles for a magazinesubscription

Is there anyway to see the status of United Airlines Mileage online check (to see how much you currently have)?
I looked on the website, pointing to options such as purchasing / redeeming miles on nothing, as you check how much you have.

I did not record the existence of the account, but I know my number, so he is used to verify this.