For the most part, AT&T’s internet plan pricing is easy to understand. For all their non-fiber internet plans, the price is $55 no matter which speed you get. AT&T will simply provide you with the fastest speed available. Be aware that that price will rise at the 12 month point in your contract by $15. So for your second year, you’ll be paying $70. For Fiber, the price differs depending on the speed you select. It starts at $55 per month