Is this phone an Unlocked AT&amp;T version? And will it be able to support T-Mobile 3G? Also is the model LT30AT or just LT30?
808640
I think this is for the international version. An AT&T unlocked version is also posted. Both support T-Mobile 3G, but only the AT&T support AT&T LTE network. This is the LT30P as it said.
380355
it's unlocked. have it now on att but it does work with tmobile and am sure with practically any other gsm carrier.
1293884
Yes, it should support T-Mobile that is exactly what I am using right now :) Yes, you do have 4g on this phone, it works perfectly on my plan. Just keep in mind that the icon that indicates a good and fast connection doesn't actually show "4g" rather you'll see a capital H+ and little arrows pointing up and down. Hope this helps.
569293
The one I got was unlocked AT&T; version, but I'm able to use it with T mobile service.
1417421
Hello This is a model unlocked, the model of a T-Mobile is a locked mobile.
798729
Yes, it is unlocked. My phone came with the AT&T logo on the front cover but I have been able to use all its functions with no problems. Works perfectly well with chips from the three different carriers in my area---does multimedia, web, and email fairly fast. Keep in mind that the 3G bands for this phone are 850 and 1900 MHz, so your local provider must be on these bands. Nice little phone.
1932397
Yes I have this phone and use it with straight talk on the AT&T; network. You can also use it on the T-Mobile network through straight talk. 4g LTE work great on AT&T.; Don't know if LTE works on T-Mobile but in theory it should because they use the same frequency range in the USA. Hope this helps.
340320
The model number is LT30p Xperia T. I'm not familiar with the AT&T; version because I got the unlocked phone, meaning I can use any network.
562991
ive seen the phone that works with AT&T, its the r800a, this phone (r800i) works on all carriers. but i dont know if it works on all carriers 3g, i have 3g with 900 MHz, i have not probed it on other frecuencies.
1568337
Dear Customer, Thanks for your interest in our items. Yes, this is an unlocked phone compatible with At&t. NOTE: Unlocked phones are not yet programmed for any network. In order to access the internet and use multimedia messages, you will need to program the phone according to your carrier. We have instructions for AT&T and T-Mobile (USA only). We look forward to have you as a customer. Thanks, Gus
334207
I found the answer:"The model does not have 4G LTE connectivity, unlike many Android phones currently sold by carriers. Thus, the GT-i9300 can only connect to AT&T;'s HSPA+ network. On T-Mobile the phone would be able to make calls, but won't be able to connect to high-speed data as the GT-i9300 lacks support for T-Mobile's 1700MHz band. Needless to say, the phone won't work on Verizon and Sprint."http://www.pcworld.com/article/255970/samsung_galaxy_s_iii_available_june_1_from_amazon_for_800.html
567685
Hey,this is PriceAngels. In US, 3G band for AT&T is 850 MHz, 1900 MHz(WCDMA) 3G band for T-mobile is 1700/2100MHz, 1900MHz(WCDMA). For this phone, it supports 850 or 2100MHz. So you can use AT&T SIM and make sure that they support 3G in 850MHz band in your area by contacting AT&T service.
1345825
It is unlocked "as-is-out-of-the-box". If you have any question, contact the vender. All you need to do is install a T-Mobile SIM card. It will also work with many, but not all, AT&T; wireless systems (of course you need an AT&T; SIM card). You also need to configure it with the appropriate APN for the carrier.
1745085
I used it for about a week or two with T-Mobile in the US and worked fine using 3G (I had LTE enabled but I'm not sure if it was using it though). That was using model D821, as advertised.
220908
This phone (C6506) is the only one among them to support AT&T's LTE network - and unlike the HTC One, it also supports T-Mobile's 3G/4G networks. Otherwise, what's the point of buying an unlocked phone, if you were to be tied to a given carrier's network anyway? That said, there are some AT&T policies you need to be aware of. Even though this phone supports their LTE band, it does not qualify you for one of their LTE data plans. So unless you already have an AT&T branded LTE capable phone, you will need to get the IMEI (serial number) off one and use that one to register for such a plan with AT&T. (In my case, I went into a local store, where the sales clerk was nice enough to use the IMEI from his own AT&T branded Xperia TL to give me such a plan...) AND - this is important - BE SURE to specifically request an LTE plan, not simply a "4g smartphone data" plan. Without an LTE plan, you will be limited to HSPA+ speeds. Even though they like to call the latter "4G", it actually a "3G" technology, running on the same frequency and air interface as UMTS and HSPDA. (I blame T-Mobile mostly, they were the ones who started marketing this technology as "4G", mainly because they did not have immediate prospects of getting LTE like the big guys...)
2165965
The Motorola RAZR v3 is still supported by all US GSM carriers as of this writing (02/13/2014). It's a 2G (EDGE) phone, so the differences between AT&T; and T-Mobile based networks won't matter to this phone (effects 3G and up). If the phone is not unlocked, you're stuck with AT&T; for service. If it is unlocked, you will have more than a few options for carriers, without contracts.
450923
Its not a T-Mobile branded phone, it is factory unlocked. It has an att logo on the back. We have tested the phone with an active T-Mobile sim card and it works great. The only thing it needs is the apn settings we can add if you need so that data and mms works.