Overview of services running on Port 505 TCP.
~15 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	SonicWALL	3518	23.283
http		3383	22.389
chat	AIM or ICQ server	2250	14.891
no match	-/-	1155	7.644
http	lighttpd	985	6.519
http	AIM	648	4.289
http	Apache	462	3.058
http	Microsoft IIS httpd	321	2.124
http	thttpd	202	1.337
ssh	OpenSSH	153	1.013
http	DrcomServer1.0	115	0.761
http	Microsoft HTTPAPI httpd	107	0.708
ssh		98	0.649
http	GoAhead-Webs	92	0.609
http	Apache Tomcat/Coyote JSP engine	87	0.576
http	Netwave IP camera http config	83	0.549
vnc	VNC	76	0.503
http	Avtech AVN801 network camera	73	0.483
http	Boa HTTPd	69	0.457
telnet		54	0.357
http	PDR-M800	54	0.357
ftp	Microsoft ftpd	33	0.218
http	mini_httpd	32	0.212
http-proxy	Squid http proxy	28	0.185
arcserve	ARCserve Discovery	28	0.185
mysql	MySQL	27	0.179
http	uc-httpd	25	0.165
http	nginx	24	0.159
http	Hikvision-Webs	24	0.159
http	Mbedthis-Appweb	23	0.152
ftp	FileZilla ftpd	22	0.146
ftp		21	0.139
smtp	Microsoft ESMTP	18	0.119
http	Gadspot/Avtech AV787 webcam http config	18	0.119
http	Cross Web Server	18	0.119
http	GeoVision GeoHttpServer for webcams	17	0.113
http	GoAhead-Webs embedded httpd	14	0.093
ftp	ProFTPD	14	0.093
ssl	TLS	13	0.086
smtp		13	0.086
http	uTorrent WebUI	13	0.086
http-proxy	F5 BIG-IP load balancer http proxy	13	0.086
smtp	Microsoft Exchange smtpd	12	0.079
http	DVR Systems webcam http interface	12	0.079
http	AIM HTTP	12	0.079
ftp	Serv-U ftpd	12	0.079
vnc	RealVNC Personal	11	0.073
ftp	vsftpd (before 2.0.8) or WU-FTPD	11	0.073
ftp	Pure-FTPd	11	0.073
rtsp		10	0.066
http	WindWeb	10	0.066
http	WebLogic httpd	10	0.066
http	TeleEye	10	0.066
http	RemotelyAnywhere remote PC management httpd	10	0.066
http	Panasonic webcam http config	10	0.066