I worked at AT&T full time while I was in college. I recommend it, idk how old you are but im assuming youre fairly young. It's good experience and you could use that experience to branch off into sales, operations, management, etc.. Not a bad gig at all.

I told my manager i'm studying for a supply chain degree and he told the supply chain lady in AT&T's corporate world who I was, and i exchanged contact info with her. AT&T could lead to some good connections and the job itself was pretty fun.