what's the slowest internet speed at&t offers
6 Mbps down provides 1.0 Mbps up. I too looked all over the ATT website and could not find any mention of upload speeds. This is probably because they are not proud of their slow upload speeds. I constantly get around 4.0 Mbps upload speeds with Charter (cable) basic internet service. ATT cannot match that speed even with their fastest U-verse package.