H2O WIRELESS | Sim Card Activation Portal
Do you already have a Sim Card from H20 Unlimited that you would like to activate? Please fill out the form below to activate your H2O Unlimited Wireless sim card online. Please note that your H2O Wireless Unlimited Sim Card must be new and never activated before and H2O Unlimited Sim Card is only compatible with AT&T or Unlocked GSM phones including the AT&T iPhone. If you do not see the form below please click here.