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	Version	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
ssl	SSLv3		952	3.507
http	AIM	1.0	588	2.166
http	lighttpd	1.4.19	557	2.052
http	lighttpd	1.4.29	436	1.606
http	Microsoft IIS httpd	6.0	150	0.553
upnp	Portable SDK for UPnP devices	1.3.1	144	0.53
http	GoAhead-Webs httpd		105	0.387
ssh			98	0.361
http	TBS	R2 UPnP	95	0.35
http	Apache Tomcat/Coyote JSP engine	1.1	84	0.309
http	WangWnagSimpleServer	1.0	77	0.284
http	Microsoft HTTPAPI httpd	2.0	77	0.284
http	thttpd	2.24	75	0.276
http	Netwave IP camera http config		70	0.258
http-proxy	EZproxy web proxy		69	0.254
http	Avtech AVN801 network camera	1.0	69	0.254
http	Apache		57	0.21
http	Microsoft IIS httpd		55	0.203
telnet			53	0.195
vnc	VNC		50	0.184
http	PDR-M800	1.0	50	0.184
http	Ubuntu	lucid UPnP	48	0.177
http	Apache	2.2.3	40	0.147
http	Boa HTTPd	0.94.14rc21	36	0.133
http	Apache	2.2.14	36	0.133
arcserve	ARCserve Discovery		36	0.133
ftp	Microsoft ftpd		30	0.111
nntp	INN nntpd		28	0.103
http-proxy	Squid http proxy	2.7.STABLE9	27	0.099
http	Apache	2.2.22	25	0.092
http	GoAhead-Webs		23	0.085
http	thttpd		20	0.074
http	thttpd	2.24 26oct2003	19	0.07
http	mini_httpd	1.19 19dec2003	19	0.07
http	Hikvision-Webs		18	0.066
http	Apache	2.2.16	18	0.066
http-proxy	Squid http proxy	2.6.STABLE12	17	0.063
http	Mbedthis-Appweb	2.0.4	17	0.063
http	thttpd	2.25b	16	0.059
http	Microsoft IIS httpd	7.5	16	0.059
http	Apache	2.0.53	16	0.059
smtp	Postfix smtpd		15	0.055
http	uc-httpd	1.0.0	15	0.055
http	Microsoft IIS httpd	5.1	15	0.055
http	Apache	2.2.15	15	0.055