Overview of services running on Port 3 TCP.
~22 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			9484	42.453
http	SonicWALL		3707	16.594
chat	AIM or ICQ server		2250	10.072
no match	-/-	-/-	1152	5.157
ssl	SSLv3		953	4.266
http	AIM	1.0	592	2.65
http	lighttpd	1.4.19	493	2.207
http	lighttpd	1.4.29	435	1.947
http	Sagem F@st router httpd		170	0.761
http	Microsoft IIS httpd	6.0	141	0.631
http	GoAhead-Webs httpd		125	0.56
http	Apache		107	0.479
ssh			105	0.47
http	Boa HTTPd	0.94.13	104	0.466
http	Httpd	1.0	103	0.461
http	Netwave IP camera http config		102	0.457
http	Microsoft HTTPAPI httpd	2.0	100	0.448
http	Microsoft IIS httpd		91	0.407
vnc	VNC		85	0.38
http	Apache Tomcat/Coyote JSP engine	1.1	77	0.345
http	Avtech AVN801 network camera	1.0	71	0.318
telnet			49	0.219
http	Boa HTTPd	0.94.14rc21	44	0.197
http	PDR-M800	1.0	40	0.179
http-proxy	Squid http proxy	2.6.STABLE12	39	0.175
http	mini_httpd	1.19 19dec2003	35	0.157
http	Apache	2.2.14	30	0.134
http	Boa httpd		29	0.13
http	Apache	2.2.3	29	0.13
ftp	Netgear broadband router or ZyXel VoIP adapter ftpd	1.0	28	0.125
ftp			27	0.121
http-proxy	Squid http proxy	2.7.STABLE9	24	0.107
http	thttpd	2.25b	23	0.103
http	thttpd		23	0.103
http	Hikvision-Webs		23	0.103
ftp	Microsoft ftpd		22	0.098
http	uTorrent WebUI		21	0.094
http	Apache	2.2.16	21	0.094
http	Mbedthis-Appweb	2.0.4	20	0.09
http	GoAhead-Webs		20	0.09
http	uc-httpd	1.0.0	19	0.085
ssh	OpenSSH	4.3	16	0.072
http	Apache	2.2.22	16	0.072