I am pasting a message I received from AT&T about data usage, I have an unlimited data plan from the early days of iPhone plans. Very disappointing. ATT Free Msg: Your data usage on your 4G LTE smartphn is near 5GB this month. Exceeding 5GB during this or future billing cycles will result in reduced data speeds, though you will still be able to email & surf the web. Wi-Fi helps you avoid reduced speeds. Visit www.att.com/datainfo or call 866-344-7584 for more info.