Latency spikes problem

So i don't know exactly how to put it in detail, but every so often my ping would start to spike up from 130ms on NA to about 270-600 for about 3 minutes then goes back down to normal, this does the same on EU servers and other games. For EU ping i would get 30ms then it will spike up to about 140 to about 300. And on a bad day 1000ms(this has only happened on BF4 and CS:GO)
I can't contact my ISP because the broadband is not on my name and i do not own it and can provide proof i.e username and pw of the company.
I am also having thoughts that it couldn't be my wire since i am wired and not wireless.
This shit has been happening for about 2 weeks now and its starting to get into my nerves.


I am probably stupid for asking this, but i have no clue what is going on.