It's the same IP all the way down.

ISP: Optimum Online

IP address state: Connecticut
IP address city: Stratford

I checked the last octet's address of +/- 1 or 2 values, they are all pointing to optimum online and someone in Connecticut

This post was edited by candyluls on Jan 4 2016 10:08am

I dont understand someone stupid enough to use their own ip?

It honestly could be a multitude of scenarios....but usually serious DDoS are done outside the U.S., this must be just some guy bored or some shit.

what should I do?

I would start by calling his ISP

It's probably a troller trying to screw up your internet, can't you just set your firewall to block his address?
Some people are just permanently and seriously psychologically demented.