Now this only applied to those on unlimited 3G/non-LTE 4G phones, or at least that’s what many had assumed but as discovered by Ars Technica, this is not the case as AT&T has been found to be throttling unlimited 4G/LTE devices as well, with 4G covering HSPA+ phones as well. While 4G and LTE are more or less synonymous these days, it is technically true that 4G does include HSPA+ as well.
That being said unlike the 3G/non-4G throttling which supposedly only happens after a customer exceeds 3GB of data and during times of congestion, 4G/LTE devices are throttled after exceeding 5GB, regardless of whether the network is congested or not. AT&T has since confirmed this and told Ars Technica that the policy will be changing come 2015, although when exactly remains to be seen.
In the meantime AT&T’s rival Verizon had similar data throttling plans of their own, but due to the immense backlash that followed their announcement, the carrier had a last minute change of heart, although we have to wonder if the FCC breathing down their neck might have anything to do with it.