So Confused about HTC One X and XL...

Ok so earlier today, I thought that the HTC One X was the name for both phones, the US (LTE and S4) and the international (Tegra 3 and no LTE).

Then, I heard that the HTC One XL was the one with LTE in the States and the One X was just the one internationally. HTC's website backed up that claim.

Now, I looked at HTC's website and saw the HTC One X (AT&T)... I'm so confused!!! This one has the AT&T branding!

Please explain.