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	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	1779	1.83
http	Jetty	789	0.811
http		719	0.739
http	lighttpd	389	0.4
ssl	TLSv1	317	0.326
http	Microsoft IIS httpd	183	0.188
http	Microsoft HTTPAPI httpd	154	0.158
ssh	OpenSSH	120	0.123
telnet		105	0.108
ssh		90	0.093
http	Boa HTTPd	77	0.079
vnc	VNC	68	0.07
ftp	ProFTPD	57	0.059
ftp	FileZilla ftpd	53	0.055
http	nginx	50	0.051
ssl	TLS	44	0.045
ftp		43	0.044
http	Ubicom	37	0.038
telnet	Linux telnetd	33	0.034
ftp	Microsoft ftpd	32	0.033
mysql	MySQL	25	0.026
eggdrop	Eggdrop irc bot console	23	0.024
http	WangWnagSimpleServer	21	0.022
http	micro_httpd	21	0.022
smtp	Microsoft ESMTP	19	0.02
socks5		16	0.016
vtun	Vtun Virtual Tunnel	14	0.014
netbios-ssn		14	0.014
ftp	Serv-U ftpd	13	0.013
vnc	Apple remote desktop vnc	12	0.012
vnc		10	0.01
telnet	Cisco 1721 router telnetd	10	0.01
smtp		10	0.01
http	WYM httpd	10	0.01
http	Cisco IOS http config	10	0.01