Overview of services running on Port 3940 TCP.
~10 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					3525	34.058
eggdrop	Eggdrop IRC bot console	1.6.21				1817	17.556
chat	AIM or ICQ server					1458	14.087
no match						1089	10.522
http						463	4.473
http	lighttpd	1.4.29				441	4.261
http	lighttpd	1.4.19				363	3.507
http	Microsoft IIS httpd					152	1.469
ssh			protocol 1.5			85	0.821
http	Microsoft HTTPAPI httpd	2.0	SSDP/UPnP	Windows		81	0.783
http	thttpd	2.24				69	0.667
telnet						45	0.435
vnc	VNC		protocol 3.8			33	0.319
http	Boa HTTPd	0.94.14rc21				32	0.309
arcserve	ARCserve Discovery					31	0.3
http	WangWnagSimpleServer	1.0				29	0.28
ftp	Microsoft ftpd			Windows		24	0.232
http	thttpd	2.25b				23	0.222
nntp	INN nntpd		posting ok			22	0.213