Overview of services running on Port 2306 TCP.
~24 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
irc	Dancer ircd					3766	15.244
http	SonicWALL				firewall	3493	14.139
http						3300	13.358
mysql	MySQL		unauthorized			3027	12.253
chat	AIM or ICQ server					1536	6.218
telnet						1127	4.562
no match						1125	4.554
telnet	Cisco IOS telnetd			IOS	switch	729	2.951
http-proxy	EZproxy web proxy					675	2.732
http	AIM	1.0				630	2.55
listserv	LISTSERV Administration service					607	2.457
http	lighttpd	1.4.29				424	1.716
http	lighttpd	1.4.19				373	1.51
telnet	Cisco 1721 router telnetd			IOS	router	191	0.773
http	Microsoft IIS httpd	6.0		Windows		160	0.648
http	WangWnagSimpleServer	1.0				156	0.631
http	Gateway-Webs					146	0.591
http	GoAhead-Webs embedded httpd					123	0.498
http	DrcomServer1.0					119	0.482
http	GoAhead-Webs					93	0.376
ssh			protocol 1.5			87	0.352
http	Apache Tomcat/Coyote JSP engine	1.1				84	0.34
http	Netwave IP camera http config				webcam	78	0.316
http	thttpd	2.24 26oct2003				74	0.3
http	Avtech AVN801 network camera	1.0	UPnP 1.0		webcam	73	0.295
http	Microsoft IIS httpd	7.5		Windows		57	0.231
http	PDR-M800	1.0				49	0.198
http	Apache					45	0.182
http	Boa HTTPd	0.94.14rc21				37	0.15
vnc	VNC		protocol 3.8			32	0.13
http	Microsoft IIS httpd	7.0		Windows		28	0.113
http	thttpd	2.25b 29dec2003				27	0.109
nntp	INN nntpd		posting ok			26	0.105
http	mini_httpd	1.19 19dec2003				26	0.105
http	Apache		SSL-only mode			25	0.101
http	Apache	1.3.6				25	0.101
ftp	Microsoft ftpd			Windows		25	0.101
http	uc-httpd	1.0.0				23	0.093
http	Apache	2.2.3	(CentOS)			23	0.093
upnp	Portable SDK for UPnP devices	1.3.1	Linux 2.6.21; UPnP 1.0	Linux		22	0.089
http	Hikvision-Webs					22	0.089
ssh	OpenSSH	4.3	protocol 2.0			21	0.085