Cellular Data Not Working?

[adock22096]

This afternoon I nothing was loading on my phone and I realized it wasn't receiving cellular data. I tried resetting the phone multiple times, I cleared the cache memory, turning airplane mode on/off, and it still doesn't work. The phone is an AT&T Note 4 running android 5.0.1. I'm still able to make calls and send texts it just doesn't get data.
Any ideas on what I should do?

Thanks in advance.

 

[adock22096]

I forgot to mention that I also checked for software updates but it said its up-to-date.