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 InfoOSDevicetypeCount Percent
httpMiniServ0.01Webmin httpd3765656.465
http1022415.331
no match756511.344
ircDancer ircd35115.265
chatAIM or ICQ server12041.805
irc-proxypsyBNC2.3.2-93850.577
httpMicrosoft IIS httpd3760.564
sshOpenSSH4.3protocol 2.03720.558
httplighttpd1.4.193290.493
oracleOracle Database3200.48
httpMicrosoft HTTPAPI httpd2.0SSDP/UPnPWindows2900.435
httpMiniServ1.580Webmin httpd2420.363
sslTLS1.01510.226
httpMiniServ1.590Webmin httpd1450.217
vncVNCprotocol 3.61430.214
sshForce10 switch sshdprotocol 1.991300.195
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 betaWindows910.136
ftpFileZilla ftpd0.9.27 betaWindows860.129
vncVNCprotocol 3.8780.117
socks5760.114
sshprotocol 1.5710.106
ftpMicrosoft ftpdWindows700.105
telnet670.1
ftpServ-U ftpd5.2Windows600.09
socks4Connection ok560.084
sshOpenSSH5.3p1 Debian 3ubuntu7Ubuntu Linux; protocol 2.0Linux540.081
remotingMS .NET Remoting services520.078
sshOpenSSH5.3protocol 2.0470.07
sshMikroTik RouterOS sshdprotocol 2.0Linuxrouter450.067
httpRouter450.067
sshOpenSSH5.1p1 Debian 5protocol 2.0Linux380.057
zabbixZabbix Monitoring System370.055
httpMiniServ1.570Webmin httpd370.055
giopomniORB omniNamesCorba naming service360.054
sshOpenSSH5.9p1 Debian 5ubuntu1Ubuntu Linux; protocol 2.0Linux350.052
tinctinc vpn daemon330.049
bandwidth-testMikroTik bandwidth-test server330.049
teamspeakTeamSpeak voice communication3310.046
sophosSophos Message RouterInterroperable Object Reference Service310.046
sshOpenSSH5.4p1FreeBSD 20100308; protocol 2.0FreeBSD300.045
smtp300.045
vncRealVNC Enterpriseprotocol 4.1290.043
httpTP-LINK Router290.043
httpBoa HTTPd0.93.15290.043
sshOpenSSH5.5p1 Debian 6+squeeze2protocol 2.0Linux250.037
httpMiniServ1.530Webmin httpd250.037
telnetMCU build-in shell240.036
svnserveSubversion240.036
ftpPure-FTPd230.034
vncprotocol 3220.033
ftpvsftpd2.0.5Unix220.033
telnetEnterasys XSR Security Router telnetdrouter210.031
arcserveARCserve Discovery200.03