AT&T uses Carrier IQ and its own tool called Mark the Spot
The idea behind Mark the Spot is that whenever you drop a call or have other problems with AT&T's network, you would open the app and report the problem to the carrier. This was originally designed for Apple iPhone users back when AT&T had U.S. exclusivity on the phone and many users were complaining about the quality of AT&T's network. Mark the Spot launched in December 2009 and earlier this year, Carrier IQ was bundled together with MTS.
According to AT%T, only 1% or 900,000 of its handsets have Carrier IQ installed either with the software or through the MTS app. Of that number, only 575,000 report back to AT&T. The carrier adds that it does not share data with any non-AT&T company, the government or law enforcement. However, it does comply with court orders, subponeas and other legal orders.
Besides the Motorola Bravo, AT&T's Android devices that have Carrier IQ installed are the Pantech Pocket, LG Thrill 4G, ZTE Avail, Sony Ericsson Xperia PLAY and the Motorola ATRIX 2.
source: AT&T via AndroidCentral