Overview of services running on Port 2600 TCP.
~12 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
irc	Dancer ircd	3688	30.616
no match	-/-	1536	12.751
chat	AIM or ICQ server	1443	11.979
telnet	Cisco IOS telnetd	1281	10.634
http	lighttpd	872	7.239
telnet		689	5.72
http		597	4.956
http	Microsoft IIS httpd	258	2.142
http	thttpd	135	1.121
vnc	VNC	107	0.888
irc-proxy	psyBNC	106	0.88
http	Microsoft HTTPAPI httpd	106	0.88
http	WangWnagSimpleServer	85	0.706
ssh		84	0.697
ssh	OpenSSH	82	0.681
http	Boa HTTPd	78	0.648
http	MS .NET Remoting httpd	51	0.423
ftp	Microsoft ftpd	51	0.423
telnet	Cisco 1721 router telnetd	44	0.365
bittorrent	Bittorrent P2P client	41	0.34
arcserve	ARCserve Discovery	36	0.299
smtp	Symantec Enterprise Security manager smtpd	32	0.266
telnet	the MRV Communications' LX Series Server	30	0.249
smtp	Exim smtpd	25	0.208
nntp	INN nntpd	25	0.208
ftp	Serv-U ftpd	24	0.199
smtp	Microsoft ESMTP	22	0.183
mysql	MySQL	22	0.183
telnet	the MRV Communications' LX Series Console Server	20	0.166
http	nginx	19	0.158
ssh	Dropbear sshd	17	0.141
smtp		16	0.133
ftp	FileZilla ftpd	16	0.133
http	GeoVision GeoHttpServer for webcams	15	0.125
ftp	Pure-FTPd	15	0.125
ftp		15	0.125
ftp	ProFTPD	13	0.108
vnc	RealVNC Personal	12	0.1
smtp	Postfix smtpd	12	0.1
http	World Client WDaemon httpd	10	0.083
http	Panasonic webcam http config	10	0.083