Overview of services running on Port 3986 TCP.
~27 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
http		10380	38.236
irc	Dancer ircd	4047	14.908
http	SonicWALL	3684	13.571
chat	AIM or ICQ server	2210	8.141
no match	-/-	1295	4.77
http	lighttpd	1033	3.805
ssl	SSLv3	952	3.507
http	AIM	588	2.166
http	Apache	326	1.201
http	Microsoft IIS httpd	259	0.954
http	thttpd	149	0.549
upnp	Portable SDK for UPnP devices	144	0.53
http	GoAhead-Webs httpd	105	0.387
ssh		98	0.361
http	TBS	95	0.35
http	Apache Tomcat/Coyote JSP engine	84	0.309
http	WangWnagSimpleServer	77	0.284
http	Microsoft HTTPAPI httpd	77	0.284
ssh	OpenSSH	73	0.269
http	Netwave IP camera http config	70	0.258
http-proxy	EZproxy web proxy	69	0.254
http	Avtech AVN801 network camera	69	0.254
http-proxy	Squid http proxy	61	0.225
http	Boa HTTPd	55	0.203
telnet		53	0.195
vnc	VNC	50	0.184
http	PDR-M800	50	0.184
http	Ubuntu	48	0.177
arcserve	ARCserve Discovery	36	0.133
ftp	Microsoft ftpd	31	0.114
nntp	INN nntpd	28	0.103
mysql	MySQL	28	0.103
http	GoAhead-Webs	23	0.085
http	mini_httpd	19	0.07
http	Hikvision-Webs	18	0.066
http	Mbedthis-Appweb	17	0.063
smtp	Postfix smtpd	15	0.055
http	uc-httpd	15	0.055
http	nginx	15	0.055
http	GeoVision GeoHttpServer for webcams	14	0.052
http-proxy	F5 BIG-IP load balancer http proxy	13	0.048
http	Net-OS 5.xx UPnP	13	0.048
http	DVR Systems webcam http interface	13	0.048
ftp	vsftpd	13	0.048
ftp	Pure-FTPd	12	0.044
ftp	FileZilla ftpd	12	0.044
ftp		12	0.044
smtp	Microsoft ESMTP	11	0.041
http	AIM HTTP	11	0.041
ftp	ProFTPD	11	0.041
smtp		10	0.037
http	uTorrent WebUI	10	0.037