Overview of services running on Port 1720 TCP.
~26 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 Count Percent
no match-/-776128.941
H.323-gatekeeperGNU Gatekeeper627723.407
ircDancer ircd288310.751
H.323/Q.93125919.662
ms-wbt-serverMicrosoft NetMeeting Remote Desktop Service19307.197
H.323-gatekeeperCompTek AquaGateKeeper18236.798
ms-wbt-serverMicrosoft Terminal Service12544.676
chatAIM or ICQ server11144.154
httpWangWnagSimpleServer2130.794
httpMicrosoft IIS httpd1210.451
sshOpenSSH1170.436
socks5890.332
httpMicrosoft HTTPAPI httpd740.276
ssh560.209
http440.164
telnet380.142
vncVNC340.127
httpBoa HTTPd290.108
arcserveARCserve Discovery280.104
ms-wbt-server-proxynmproxy NetMeeting proxy270.101
ftp200.075
nntpINN nntpd190.071
mysqlMySQL180.067
ftpMicrosoft ftpd160.06
httpnginx150.056
sshSCS sshd130.048
vncRealVNC Enterprise110.041
minecraftMinecraft game server110.041
vncRealVNC Personal100.037
smtpMicrosoft ESMTP100.037