One of the things that helped T-Mobile to grow so fast was the reintroduction of unlimited data plans. We all know that “unlimited” really isn’t unlimited though and when the T-Mobile One plan debuted it had a cap of 32GB of use per month before data prioritization.  That cap was raised to 50GB in September. Customers on that unlimited plan

Source: Hot Hardware – T-Mobile Caps Roaming Data In Mexico And Canada Starting November 12