Data caps haven't been implemented to our service. . .yet. But with the router I use, it displays a graph for data usage. Had surgery on my shoulder not too long ago so not working for now. With that being said, I spend hours on Netflix and playing online PC multiplayer and Xbox Live games. In just 15 days, I've used 198Gb of data. And that's just for my PC and gaming console. That doesn't include other household members data usage. Personally, a 250Gb data cap would be iffy for me. My suggestion would be to find data usage software and see what your current usage is to be on the safe side.