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	Version	Info	OS	Devicetype	Count	Percent
http	SonicWALL				firewall	3518	23.283
http						3277	21.688
chat	AIM or ICQ server					2250	14.891
no match						1155	7.644
http	AIM	1.0				648	4.289
http	lighttpd	1.4.29				489	3.236
http	lighttpd	1.4.19				428	2.833
http	Microsoft IIS httpd	6.0		Windows		172	1.138
http	DrcomServer1.0					115	0.761
http	Microsoft HTTPAPI httpd	2.0	SSDP/UPnP	Windows		107	0.708
ssh			protocol 1.5			95	0.629
http	GoAhead-Webs					92	0.609
http			Web Management			88	0.582
http	Apache Tomcat/Coyote JSP engine	1.1				84	0.556
http	Netwave IP camera http config				webcam	83	0.549
http	Apache		SSL-only mode			81	0.536
http	thttpd	2.24				79	0.523
http	Microsoft IIS httpd					77	0.51
http	Avtech AVN801 network camera	1.0	UPnP 1.0		webcam	73	0.483
http	PDR-M800	1.0				54	0.357
telnet						53	0.351
vnc	VNC		protocol 3.8			52	0.344
ssh	OpenSSH	4.7	protocol 2.0			44	0.291
http	Apache					43	0.285
http	Boa HTTPd	0.94.14rc21				42	0.278
http	thttpd	2.24 26oct2003				40	0.265
http	mini_httpd	1.19 19dec2003				32	0.212
arcserve	ARCserve Discovery					28	0.185
http	Microsoft IIS httpd	5.1		Windows		26	0.172
http	Apache	2.2.3	(CentOS)			26	0.172
ftp	Microsoft ftpd			Windows		26	0.172
http	uc-httpd	1.0.0				25	0.165
http	Microsoft IIS httpd	7.5		Windows		25	0.165
http	lighttpd					24	0.159
http	Hikvision-Webs					24	0.159
http	lighttpd	1.4.20				23	0.152
http	thttpd	2.25b				22	0.146
http	Mbedthis-Appweb	2.0.4				22	0.146
http	Apache	2.2.3	(Red Hat)			22	0.146
ftp						21	0.139