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All fans in attendance at O.co Coliseum home games have the ability to upgrade their seats by using the MLB.com Ballpark phone application for iPhone and Android phones. A's Season Ticket Holders can upgrade beginning one hour before first pitch and individual game ticket buyers can upgrade 30 minutes before first pitch.

MLB.com Ballpark app

To upgrade your seats, download the MLB.com Ballpark app before you get to O.co Coliseum. Learn More »

  • iPhone
  • Android
After signing up for alerts, you will receive a text message from "Exp Alert" at a 404 area code.