Overview of services running on Port 6667 TCP.
~136 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	Info	OS	Devicetype	Count	Percent
socks-proxy	Socks4A					46756	34.223
no match						23352	17.093
irc	Unreal ircd					17685	12.945
socks5			No authentication; connection failed			10536	7.712
irc	Dancer ircd					4652	3.405
lexlm	Lexmark language monitor					3376	2.471
chat	AIM or ICQ server					2528	1.85
http						2514	1.84
irc	BitlBee IRCd					2265	1.658
eggdrop	Eggdrop IRC bot console	1.6.21				2237	1.637
irc	InspIRCd					2116	1.549
telnet	Cisco telnetd			IOS	router	2050	1.501
irc	ircu ircd					1917	1.403
smtp	Postfix smtpd					1591	1.165
irc	IRCnet ircd					1475	1.08
irc-proxy	psyBNC	2.3BETA				790	0.578
irc	ngircd					789	0.578
telnet						696	0.509
irc	IRCnet-based ircd					656	0.48
irc	ratbox ircd					647	0.474
irc						574	0.42
http	lighttpd	1.4.29				459	0.336
http	lighttpd	1.4.19				430	0.315
http-proxy	Squid http proxy	2.7.STABLE9				374	0.274
irc	Hybrid-based ircd					280	0.205
http	Microsoft IIS httpd					280	0.205
http	Microsoft HTTPAPI httpd	2.0	SSDP/UPnP	Windows		247	0.181
irc-proxy	psyBNC	2.3.2-4				233	0.171
http	thttpd	2.24				143	0.105
irc-proxy	ShroudBNC irc-proxy	1.1 revision 371				141	0.103
irc	Minbif ircd					134	0.098
http	GoAhead-Webs httpd					129	0.094
irc-proxy	psyBNC	2.3.1				125	0.091
irc-proxy	ShroudBNC irc-proxy	1.2 revision 1080				123	0.09
vnc	VNC		protocol 3.8			121	0.089
socks5						114	0.083
http	nginx	0.8.33				109	0.08
ssh			protocol 1.5			98	0.072
http	Boa HTTPd	0.94.14rc21				93	0.068
irc-proxy	psyBNC	2.3.2-7				88	0.064
ssh	OpenSSH	5.5p1 Debian 6+squeeze2	protocol 2.0	Linux		83	0.061
ssh	OpenSSH	4.3	protocol 2.0			82	0.06
http	Virata-EmWeb	6.0.1				74	0.054
http	Apache Tomcat/Coyote JSP engine	1.1				69	0.051
http	Microsoft HTTPAPI httpd	1.0	SSDP/UPnP	Windows		67	0.049
ftp	Microsoft ftpd			Windows		45	0.033
irc-proxy	dircproxy					43	0.031
directconnect	Direct Connect P2P			Windows		42	0.031
socks4	Connection ok					40	0.029
irc-proxy	psyBNC	2.2.1				40	0.029
http	thttpd	2.25b				39	0.029
ftp						39	0.029
upnp	Microsoft Windows UPnP			Windows		37	0.027
irc-proxy	psyBNC	2.3.2-9				36	0.026
ssh	OpenSSH	5.3p1 Debian 3ubuntu7	Ubuntu Linux; protocol 2.0	Linux		35	0.026
http	thttpd					34	0.025
shoutcast-publishing	SHOUTcast publishing port					33	0.024
arcserve	ARCserve Discovery					33	0.024
vnc	RealVNC Personal		protocol 4.0			32	0.023
http-proxy	Squid http proxy					32	0.023
ssh	OpenSSH	5.1p1 Debian 5	protocol 2.0	Linux		29	0.021
vnc	VNC		protocol 3.6			28	0.02
vnc	RealVNC Enterprise		protocol 4.1			28	0.02
ssl	TLS	1.0				28	0.02
http	Hikvision-Webs					28	0.02
ssh			protocol 2.0			26	0.019
ssh	OpenSSH	5.3	protocol 2.0			26	0.019
http	Apache	2.2.3				26	0.019
mysql	MySQL		unauthorized			25	0.018
telnet	Linux telnetd			Linux		24	0.018
napster	WinMX or Lopster Napster P2P client					24	0.018
http	http server 1.0					23	0.017
http	lighttpd					21	0.015
ssh	SCS sshd	2.0.13	protocol 1.5			20	0.015
ssh	OpenSSH	5.0	protocol 2.0			20	0.015
http-proxy	Squid http proxy	2.6.STABLE12				20	0.015