Overview of services running on Port 2383 TCP.
~32 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
http						9581	29.509
irc	Dancer ircd					4039	12.44
http	SonicWALL				firewall	3682	11.34
telnet	Cisco IOS telnetd			IOS	switch	2553	7.863
chat	AIM or ICQ server					2222	6.844
telnet						1577	4.857
no match						1416	4.361
ssl	SSLv3					841	2.59
http	AIM	1.0				592	1.823
http-proxy	EZproxy web proxy					487	1.5
telnet	Cisco 1721 router telnetd			IOS	router	430	1.324
http	lighttpd	1.4.29				428	1.318
http	lighttpd	1.4.19				414	1.275
http	Gateway-Webs					265	0.816
http	WangWnagSimpleServer	1.0				227	0.699
http	GoAhead-Webs httpd					148	0.456
http	Microsoft IIS httpd	6.0		Windows		131	0.403
http	Apache	1.3.6				106	0.326
ssh			protocol 1.5			95	0.293
http	Apache Tomcat/Coyote JSP engine	1.1				79	0.243
http	Netwave IP camera http config				webcam	73	0.225
http	Avtech AVN801 network camera	1.0	UPnP 1.0		webcam	70	0.216
http	Microsoft HTTPAPI httpd	2.0	SSDP/UPnP	Windows		69	0.213
http	thttpd	2.24				66	0.203
http	Microsoft IIS httpd					63	0.194
http	PDR-M800	1.0				54	0.166
telnet	Cisco router telnetd			IOS	router	39	0.12
http	Boa HTTPd	0.94.14rc21				38	0.117
vnc	VNC		protocol 3.8			36	0.111
http	Apache					36	0.111
arcserve	ARCserve Discovery					32	0.099
http	Apache	2.2.3	(CentOS)			29	0.089
nntp	INN nntpd		posting ok			28	0.086
ftp	Microsoft ftpd			Windows		26	0.08
http	mini_httpd	1.19 19dec2003				24	0.074
http-proxy	Squid http proxy	2.7.STABLE9				23	0.071
http	Hikvision-Webs					23	0.071
http	GoAhead-Webs embedded httpd					23	0.071
telnet	BusyBox telnetd					22	0.068
http	Mbedthis-Appweb	2.0.4				20	0.062