Galaxy Note 3 accessories suggest release on AT&T, Sprint and Verizon

Samsung isn’t planning to announce the Galaxy Note 3 until next week, but you can already buy accessories for it today on Amazon(s amzn). Laptop Mag spotted some extended batteries with back covers and cases available for sale. Most interesting is the extended battery from Hyperion Electronics Accessories, which tags the product for compatibility with AT&T(s t), Sprint(s s), Verizon(s vz)(s vod) and international versions of the phone.

We already know plenty about the Galaxy Note 3, but carrier availability is not one of those things. If this listing is correct, it may mean that Samsung is planning to launch the phone on three of the major U.S. carriers, though T-Mobile(s tmus) is conspicuously absent. This could be a careless omission on Hyperion EA’s part, or it’s possible the phone will not debut on T-Mobile.

While Apple(s aapl) has been infamously picky in its relationships with wireless carriers, Samsung tends to cast a much wider net, with most of its devices available as widely as possible. Still, T-Mobile is the only carrier not to offer the new Moto X in stores (though you can still get it online), so anything is possible.

All of these accessories “usually ship with 3 to 5 weeks,” which could also be an indication for when to expect the Galaxy Note 3 to become available to the public. No dimensions are listed for any of these accessories, so there’s no new information about just how large the Galaxy Note 3 will be. But if the rumors are any indication, expect the phone to feature a 5.7-inch screen, with slimmed down bezels that allow it to occupy the same relative footprint as the Galaxy Note 2.

Samsung has confirmed that it will announce the Galaxy Note 3, as well as the Galaxy Gear smartwatch, at an event on September 4.