irc k-line

i just got my internet hooked up (finally), and it would appear that the previous holder of this ip address was k-lined from an irc server or two. is there any way i can get on them at all or am i pretty much screwed?
btw, i have cable so i cant just reset the modem and get a new ip.

if its connected to a router just change the routers mac address and then renew the ip on the dhcp