Add TracFone airtime before service end date. No value until purchased and scanned. No bills. No surprises. You're in control. Adds 1 year to service end date and 400 minutes or airtime. America's No. 1 Prepaid cell phone. For use only with TracFone Cell Phones. Cards are non-refundable. Thank you for being a TracFone customer. Adding this card will keep you connected by: 1. Adding 365 days (1 year) to the Service End Date that is now displayed on your TracFone screen. 2. Adding 400 minutes/units to the airtime balance on your TracFone screen. 3. If you want to double the minutes on this card, and all future airtime cards you add to your current TracFone, just buy and add a Double Minute Card before you add this card.