Overview of services running on Port 50003 TCP.
~97 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
remoting	MS .NET Remoting services		86983	89.461
no match	-/-	-/-	2731	2.809
chat	AIM or ICQ server		1810	1.862
http	thttpd		1618	1.664
http			719	0.739
http	Jetty	7.0.2.v20100331	613	0.63
http	lighttpd	1.4.19	389	0.4
ssl	TLSv1		317	0.326
http	Microsoft IIS httpd		183	0.188
http	Jetty	6.1.19	160	0.165
http	Microsoft HTTPAPI httpd	2.0	152	0.156
telnet			105	0.108
ssh			90	0.093
http	Boa HTTPd	0.94.14rc21	71	0.073
vnc	VNC		68	0.07
ssl	TLS	1.0	44	0.045
ftp			43	0.044
ftp	ProFTPD	1.3.3	42	0.043
http	Ubicom	1.1	37	0.038
telnet	Linux telnetd		33	0.034
http	thttpd	2.25b	33	0.034
ftp	Microsoft ftpd		29	0.03
http	thttpd	2.19-MX Jul 1 2010	24	0.025
ftp	FileZilla ftpd	0.9.23 beta	24	0.025
http	WangWnagSimpleServer	1.0	21	0.022
http	thttpd	2.19-MX Oct 19 2011	21	0.022
http	micro_httpd		21	0.022
eggdrop	Eggdrop irc bot console	1.6.19	21	0.022
http	thttpd	2.19-MX Sep 9 2010	17	0.017
ssh	OpenSSH	4.3	16	0.016
socks5			16	0.016