AT&T Prepaid's Unlimited plan for 1 line costs $55 per month.
It rides on the AT&T network for coverage.
It includes unlimited minutes, unlimited texts, and unlimited high-speed data per month. You get 25GB of hotspot data. Video streams at 4K quality.
It is worth noting that the AT&T Prepaid Unlimited MAX plan includes priority data. Having priority data means you will get slightly faster data speeds during times when the cellular network is busy, such as at sports games, concerts, or during rush hour traffic.
Taxes and fees are extra on this plan. I estimate they will add another $6.12 to the price. Your total montly bill will be about $61.12 per month.
Overall, I recommend the AT&T Prepaid Unlimited MAX plan because it is a good value.
You can also check out these plans with the same coverage and data amount (scroll left and right to browse plans):