Overview of services running on Port 50023 TCP.
~7 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
no match						1909	26.88
chat	AIM or ICQ server					1846	25.993
telnet	Draytek Vigor ADSL router telnetd				broadband router	578	8.139
http	lighttpd	1.4.19				374	5.266
http						351	4.942
telnet						349	4.914
telnet	Linux telnetd			Linux		283	3.985
http	Microsoft IIS httpd					146	2.056
http	Microsoft HTTPAPI httpd	2.0	SSDP/UPnP	Windows		108	1.521
ssh			protocol 1.5			86	1.211
ssl	TLS	1.0				66	0.929
telnet	Enterasys XSR Security Router telnetd				router	47	0.662
ftp	ProFTPD	1.3.3		Unix		45	0.634
ftp						39	0.549
http	thttpd					38	0.535
http	WangWnagSimpleServer	1.0				29	0.408
ftp	Microsoft ftpd			Windows		27	0.38
vnc	VNC		protocol 3.8			26	0.366
ssh	OpenSSH	4.7p1 Debian 8ubuntu3	protocol 2.0	Linux		21	0.296
ssh	OpenSSH	4.3	protocol 2.0			20	0.282