Unlimited Internet may soon be a thing of the past.
AT&T is joining several major tech companies to put a cap on internet plans.
Comcast is also charging extra for excessive data use, and Verizon customers say they have received warnings for the same thing.
These plans are starting off with huge caps, and officials say it will only affect 4 percent of subscribers. But the fact is, just like cell phone data, many people will have to start watching their internet usage, closely.