Overview of services running on Port 32771 TCP.
~42 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
rpcbind			23911	56.621
http			4818	11.409
http	SonicWALL		3726	8.823
no match	-/-	-/-	2904	6.877
chat	AIM or ICQ server		1984	4.698
ssl	SSLv3		873	2.067
http	lighttpd	1.4.19	420	0.995
http	AIM	1.0	327	0.774
http	lighttpd	1.4.29	169	0.4
http	Microsoft IIS httpd		140	0.332
http	Jetty	6.1.x	136	0.322
ssh			103	0.244
http	Microsoft HTTPAPI httpd	2.0	102	0.242
http	GoAhead-Webs httpd		102	0.242
flexlm	FlexLM license manager		95	0.225
http	TimesTen httpd		88	0.208
http	Apache Tomcat/Coyote JSP engine	1.1	82	0.194
vnc	VNC		59	0.14
http	Apache		59	0.14
http	Avtech AVN801 network camera	1.0	58	0.137
http	Netwave IP camera http config		56	0.133
telnet			55	0.13
http	Microsoft IIS httpd	6.0	43	0.102
http	PDR-M800	1.0	41	0.097
ftp			39	0.092
http	uTorrent WebUI		38	0.09
http	httpd		38	0.09
http	Apache	2.2.14	35	0.083
http	Plex Media Center httpd		32	0.076
http	Apache	2.2.3	32	0.076
ssh	OpenSSH	5.6	31	0.073
http	FLPS		31	0.073
http	Boa HTTPd	0.94.14rc21	29	0.069
http	Mac OS X		27	0.064
http	Apache	1.3.6	25	0.059
http	Apache	1.3.28	25	0.059
ssl	TLS	1.0	23	0.054
http	mini_httpd	1.19 19dec2003	23	0.054
vnc	Apple remote desktop vnc		22	0.052
http	Net-OS 5.xx UPnP	1.0	22	0.052
http	Apache	2.2.22	22	0.052
http	Apache	2.2.15	22	0.052
http	DD-WRT milli_httpd		21	0.05
ssh	OpenSSH	4.3	20	0.047
http	thttpd		20	0.047
http	thttpd	2.25b	19	0.045
http	Jetty	6.1.5	19	0.045
http	Apache	2.2.16	19	0.045
ftp	Microsoft ftpd		19	0.045
ftp	Check Point Firewall-1 ftpd		19	0.045
http-proxy	Squid http proxy		18	0.043
http	GoAhead-Webs		18	0.043
http	Hikvision-Webs		17	0.04
http	Mbedthis-Appweb	2.0.4	15	0.036
ftp	Pure-FTPd		15	0.036