
Late last year, AT&T began throttling the data speeds of its highest-use unlimited data customers, knocking down the ability of the top 5% of its users to consume data for the remainder of a billing period once they hit certain thresholds. While AT&T no longer offers unlimited data plans, it did so for several years with the iPhone, and users who had previously signed up for the unlimited have been able to keep their plans even as they have upgraded to new devices.

AppAdvice takes a look at the effect of AT&T's throttling on a user's web experience on the iPhone, showing how the move can make the device nearly unusable with data speeds well below that of even the carrier's fallback EDGE network.
Article Link: A Look at AT&T's Throttling for High-Use Unlimited iPhone Data Customers