Receiving less than half of speed in my plan

I've lived at my current address for a few years now and have never received the original 800mbps speed or the gigabit+ speed I'm currently paying for, the highest my speed will ever get now is 700mbps~, on average it sits around 500-600. I've switched routers and modems, checked my cables in home up to the cable coming from the pole and everything on my end is good. Is there a chance a configuration at a local hub could be preventing me from receiving the speed I should be getting?