sudo nmap -PU 65.74.76.6

Starting Nmap 4.03 ( http://www.insecure.org/nmap/ ) at 2006-07-24 14:51 AKDT
Interesting ports on 6-76-74-65.gci.net (65.74.76.6):
(The 1672 ports scanned but not shown below are in state: closed)
PORT     STATE SERVICE
80/tcp   open  http
6001/tcp open  X11:1

Nmap finished: 1 IP address (1 host up) scanned in 0.215 seconds