Overview of services running on Port 2040 TCP.
~19 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
telnet	Cisco IOS telnetd	5665	29.02
irc	Dancer ircd	3792	19.425
no match	-/-	2284	11.7
telnet		1902	9.743
chat	AIM or ICQ server	1403	7.187
ms-wbt-server	Microsoft Terminal Service	656	3.36
telnet	Cisco router telnetd	651	3.335
telnet	Cisco 1721 router telnetd	481	2.464
irc-proxy	ShroudBNC irc-proxy	398	2.039
http	lighttpd	368	1.885
http	Microsoft IIS httpd	214	1.096
http	WangWnagSimpleServer	212	1.086
telnet	Linux telnetd	161	0.825
ssh	OpenSSH	160	0.82
http	Microsoft HTTPAPI httpd	125	0.64
http		98	0.502
ssh		83	0.425
http	Boa HTTPd	72	0.369
rtmp	Real-Time Messaging Protocol	55	0.282
vnc	VNC	43	0.22
arcserve	ARCserve Discovery	42	0.215
remoting	MS .NET Remoting services	39	0.2
ftp	Microsoft ftpd	34	0.174
http	nginx	31	0.159
H.323-gatekeeper	CompTek AquaGateKeeper	31	0.159
nntp	INN nntpd	27	0.138
ftp		27	0.138
ssh	Cisco SSH	23	0.118
mysql	MySQL	21	0.108
ssh	Dropbear sshd	20	0.102
1c-server	1C:Enterprise business management server	18	0.092
vnc		15	0.077
ssl	TLS	15	0.077
vnc	RealVNC Enterprise	13	0.067
ftp	ProFTPD	13	0.067
ftp	FileZilla ftpd	12	0.061
smtp		11	0.056
minecraft	Minecraft game server	11	0.056
ftp	Pure-FTPd	11	0.056
openvpn	OpenVPN	10	0.051