AT&T LTE 200GB Plan: AT 20Mbs. 20mbs speed cap up to 200GB. Slower speeds occur after allotment has been used in a monthly data cycle. Slow speeds reduce to 3Mbs DL/UP.
AT&T LTE 400GB Plan: AT 400GB. No Speed Cap up to 400GB. Slower speeds occur after allotment has been used in a monthly data cycle. Slow speeds reduce to 10Mbs DL/UP
AT&T LTE Unlimited Plan: AT Unlimited. may be slower at certain times of the day. Slow speeds reduce to 10Mbs DL/UP and speed will return once cell tower congestion has been reduced.