Overview of services running on Port 3900 TCP.
~9 Thousand IP addresses observed from May to December 2012
To get raw lists of the data go to Download. For an explanation of what this data is and how it was obtained, see Paper.

Servicename Product Version Count Percent
ircDancer ircd363336.48
chatAIM or ICQ server179518.024
no match-/--/-171517.221
vncVNC5745.764
httplighttpd1.4.193813.826
http3093.103
mysqlMySQL4.1.182172.179
httpMicrosoft IIS httpd1671.677
httpMicrosoft HTTPAPI httpd2.01151.155
ssh880.884
httpthttpd2.24790.793
telnet500.502
vncRealVNC Enterprise360.361
vnc360.361
vncRealVNC Personal350.351
arcserveARCserve Discovery350.351
httpBoa HTTPd0.94.14rc21320.321
httpthttpd2.25b280.281
ftp250.251
msrpcMicrosoft Windows RPC230.231
nntpINN nntpd220.221
ftpMicrosoft ftpd220.221
telnetthe MRV Communications' LX Series Server200.201
sshOpenSSH4.3190.191
metatraderMetaTrader Data Center150.151