What sevice do I need from AT&T to use An MR1100 as my home internet

AT&T sells its service with AT&T branded MR1100.

 

You can buy a retail version of MR1100-100NAS from Amazon. Then you need to shop around to find the data plan from the carrier that serves better in your area.

 

Most of carriers provide the data plans for mobile hotspots.

 

Thanks