Overview of services running on Port 1688 TCP.
~8 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	Count	Percent
irc	Dancer ircd		3366	37.584
chat	AIM or ICQ server		1363	15.219
no match	-/-	-/-	1056	11.791
http			606	6.766
http	lighttpd	1.4.29	417	4.656
http	lighttpd	1.4.19	362	4.042
http	Microsoft IIS httpd		270	3.015
http	WangWnagSimpleServer	1.0	173	1.932
http	Microsoft HTTPAPI httpd	2.0	92	1.027
ssh	OpenSSH	4.3	85	0.949
ssh			83	0.927
http	thttpd	2.24	66	0.737
http	lighttpd		61	0.681
telnet			49	0.547
http	MiniServ	0.01	49	0.547
vnc	VNC		43	0.48
arcserve	ARCserve Discovery		35	0.391
http	Boa HTTPd	0.94.14rc21	33	0.368
ftp	Microsoft ftpd		28	0.313
http	thttpd	2.25b	27	0.301
http	thttpd		23	0.257
ssl	TLS	1.0	21	0.234
nntp	INN nntpd		20	0.223
ssh	OpenSSH	5.3	19	0.212
http	Router		17	0.19
http	Microsoft IIS httpd	5.1	16	0.179