Does anyone know what's the HSDPA for AT&T in US? Is it 850/1900?

[Sky1106j]

Does anyone know what's the HSDPA for AT&T in US? Is it 850/1900?

[Rudegar]

I know that At&t is not 850 as people from the rest of the world who buy iphones 3g in usa can use them on 3g in their countries and only america use 3g on 850

[Dawei94]

HSDPA is 850/1900 for AT&T. Look at the specs for some of the 3G phones on their website, they should all say 850/1900 UMTS

[scl_electronics]

This is what it looks like to various HTC mfg phones....in Ca.
on my ATT 8525(att wm6.0 rom)= 3G:850, HSDPA:1900
No matter which network is being used 3G is what is displayed

On my X1i only HSDPA: 1900 this connects only in the major metropolitan area! in Ca. I live in a small commuter community so, HSDPA is about 15 mile out of range north or south of me....But we do have 3G: 850(what att uses in their fringe areas) so no joy for my X1i

[mlacomb]

This is what it looks like to various HTC mfg phones....in Ca.
on my ATT 8525(att wm6.0 rom)= 3G:850, HSDPA:1900
No matter which network is being used 3G is what is displayed


Download Advanced Configuration Tool (search) and you can turn on HSPDA and the icon. I've read some people had trouble with the setting sticking; however I've had good luck with the stock ATT Rom and latest 1.12.25.19 (I think) radio. Didn't do any speed tests to actually see if it made a difference other than anecdotal evidence.