Confusing Data Overages - Usage by device

Is there any way to track usage data by device? I've been getting overages the last couple months and can't track the data hog. The data jumps at weird times. This month I got a 90% warning on the 23rd then got the 100% warning today on the 24th. I saw a post in the forum with many people talking about unexpected overages the last couple months. Is there any way week dig deeper into my usage to see what devices are using the data?