Anyone know if AT&T keeps published information on what frequencies they use in different parts of the country? In Portland, Seattle and Redmond, I can't replicate the massive speed drop by holding the phone in my left hand like I could down in Austin. As far as bars, I only managed to drop it from 5 to 4 once in Portland, nowhere near the 5-1 I could do 2 blocks from a tower in Austin.

Also not seeing any fast HSUPA uplink speeds in these areas compared to Austin, I wonder if somehow that has anything to do with it. I'm just more confused now.