You can see your upgrade date on line. If you haven't taken any new contracts since your last upgrade and are in a 2 year contract, add 2 months to the upgrade date and that will be your contract end date. HOWEVER, if you have updated your contract (ie changed to a new promo or chnged your minutes) than this method will not be reliable.

as of about a week ago.vzw web site will show you when your upgrade dates are and when your ne2 date is. if you havent signed up for my account info on site,then you will need to register. but it shows upgrade dates know on 1 or all lines on family plans.