It’s not on any carrier, notice how the news guy said “T-Mobile” that phone has antennae equipment on the inside for receiving GSM signals only…pretty much unlocked it just like people do their cingular/att - tmobile razr’s…it just took a little more because of how the phone was built. It’ll never work on Sprint/Nextel, Verizon,Cricket,Metro without some major modifications that wouldn’t be possible because of the cramped space inside of that phone…simply no room for the amount of hardware which would be needed to make it cross network technology