It's been a big day for Samsung — earlier today, we heard that the Galaxy S III was coming to the biggest four US carriers, and pre-order dates for Verizon, Sprint and T-Mobile have already all been announced. AT&T's finally joining the party, letting us know that the Samsung Galaxy S III will be up for pre-order as of June 6th, just like at Verizon. Just like the other carriers, the 16GB model will cost $199.99 with a two-year contract. Unlike the other carriers, however, AT&T will exclusively offer a red version of the phone in addition to the standard white and blue models — though it sounds like this color won't be available right at launch.

Unsurprisingly, the phone will run on both AT&T's new LTE network as well as its HSPA+ network, but unlike the other Verizon, Sprint, and US Cellular, AT&T makes no mention of offering the 32GB Galaxy S III model — it only says it'll offer a 16GB model with the option to bundle in a 16GB microSD card for an additional $39. There's no release date available yet for AT&T's version of the Galaxy S III, but it wouldn't surprise us to see this phone land right around June 21st.