As of at least summer 2013 Sprint no longer offers public ips with new phones. It's all carrier-grade NAT. T-Mobile is the same but they provide ipv6, though wi

As of at least summer 2013 Sprint no longer offers public ips with new phones. It's all carrier-grade NAT. T-Mobile is the same but they provide ipv6, though with just a single ipv6 address which doesn't make any sense. I'm not sure about the other carriers.