Interesting ports on assigned.150.155.204.in-addr.arpa (204.155.150.51):
(The 1531 ports scanned but not shown below are in state: closed)
Port       State       Service
21/tcp     open        ftp                     
53/tcp     open        domain                  
80/tcp     open        http                    
135/tcp    open        loc-srv                 
443/tcp    open        https                   
445/tcp    open        microsoft-ds            
1025/tcp   open        listen                  
1026/tcp   open        nterm                   
5631/tcp   open        pcanywheredata          
6666/tcp   open        irc-serv                
7007/tcp   open        afs3-bos                

Remote OS guesses: Windows Me or Windows 2000 RC1 through final release, Windows Millenium Edition v4.90.3000

# Nmap run completed at Thu Jun  7 04:06:08 2001 -- 1 IP address (1 host up) scanned in 27 seconds