AT&T throttling unlimited data subscribers regardless of network congestion

Recent anecdotal evidence of throttling AT&T data speeds on unlimited LTE plans have been confirmed by spokespeople, despite regulatory pressure to eliminate the practice. AT&T users with those subscriptions are still being automatically throttled after they hit 5 GB of usage. This change can be as dramatic as a dip from 23 Mbps to 0.1 Mbps until the end of the billing cycle.

source: androidcentral