H2O Wireless Triple Cut SIM card for your phones  (AT&T models and unlocked compatible GSM models only! Verizon and Sprint models (CDMA) will not work with this SIM) activation on H2O Wireless. This is a H2O Wireless SIM card that uses AT&T network. You cannot use this SIM with an existing AT&T Wireless account or for a new AT&T Wireless account activation. You can only use it for activating your phone with H2O Wireless (h2owirelessnow.com) with its own plans, support and customer service. For activation, you will need to go to h2owirelessnow.com and buy a prepaid no-contract month-to-month unlimited plan) Before buying, check that you have H2O Wireless coverage. Go to h2owirelessnow.com/mainControl.php?page=coverage and enter your ZIP code. Triple Cut SIM - Nano, Micro, Standard (Mini) in one - just punch the one that fits your phone.  The sale is final. No returns.