Overview of services running on Port 20000 TCP.
~66 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
httpMiniServ0.013765756.464
http1023015.339
no match-/--/-756511.343
ircDancer ircd35115.264
chatAIM or ICQ server12041.805
irc-proxypsyBNC2.3.2-93850.577
sshOpenSSH4.33780.567
httpMicrosoft IIS httpd3760.564
httplighttpd1.4.193290.493
oracleOracle Database3200.48
httpMicrosoft HTTPAPI httpd2.02900.435
httpMiniServ1.5802420.363
vncVNC2300.345
sslTLS1.01510.226
httpMiniServ1.5901450.217
sshForce10 switch sshd1300.195
irc-proxypsyBNC2.3.2-71260.189
httpToT Server1240.186
httpBoa HTTPd0.94.14rc21990.148
httpVirata-EmWeb6.0.1970.145
iceInternet Communications Engine930.139
ftp930.139
ormiOracle Remote Method Invocation920.138
ftpFileZilla ftpd0.9.40 beta910.136
ftpFileZilla ftpd0.9.27 beta860.129
socks5770.115
ssh730.109
ftpMicrosoft ftpd700.105
telnet670.1
ftpServ-U ftpd5.2600.09
socks4Connection ok560.084
sshOpenSSH5.3p1 Debian 3ubuntu7540.081
remotingMS .NET Remoting services520.078
sshOpenSSH5.3470.07
sshMikroTik RouterOS sshd450.067
httpRouter450.067
sshOpenSSH5.1p1 Debian 5390.058
zabbixZabbix Monitoring System370.055
httpMiniServ1.570370.055
giopomniORB omniNames360.054
sshOpenSSH5.9p1 Debian 5ubuntu1350.052
tinctinc vpn daemon330.049
bandwidth-testMikroTik bandwidth-test server330.049
teamspeakTeamSpeak voice communication3310.046
sophosSophos Message Router310.046
sshOpenSSH5.4p1300.045
smtp300.045
vncRealVNC Enterprise290.043
sshOpenSSH3.9p1290.043
httpTP-LINK Router290.043
httpBoa HTTPd0.93.15290.043
sshOpenSSH5.5p1 Debian 6+squeeze2250.037
httpMiniServ1.530250.037
telnetMCU build-in shell240.036
svnserveSubversion240.036
ftpPure-FTPd230.034
vnc220.033
ftpvsftpd2.0.5220.033
telnetEnterasys XSR Security Router telnetd210.031
arcserveARCserve Discovery200.03
cccamCCcam DVR card sharing system information190.028
sshOpenSSH5.8p1 Debian 7ubuntu1180.027
httpnginx1.3.1180.027
httpMiniServ1.550180.027
sshOpenSSH5.8170.025
sshOpenSSH5.2170.025
httpnginx170.025
sshOpenSSH4.3p2 Debian 9160.024
httpNetscape FastTrack Administrator3.5160.024
ftpFileZilla ftpd0.9.41 beta160.024
tandem-printSharp printer tandem printing150.022
oracle-tnsOracle TNS Listener150.022
httpJetty6.1.x150.022