Overview of services running on Port 1801 TCP.
~27 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						10417	37.552
irc	Dancer ircd					4046	14.585
http	SonicWALL				firewall	3734	13.461
chat	AIM or ICQ server					2213	7.978
no match						1382	4.982
ssl	SSLv3					871	3.14
http	AIM	1.0				615	2.217
http	lighttpd	1.4.29				442	1.593
http	lighttpd	1.4.19				419	1.51
http	WangWnagSimpleServer	1.0				289	1.042
http	Apache Tomcat/Coyote JSP engine	1.1				178	0.642
http	Microsoft IIS httpd	6.0		Windows		142	0.512
telnet	Linux telnetd			Linux		136	0.49
http	GoAhead-Webs httpd					100	0.36
http	Netwave IP camera http config				webcam	98	0.353
ssh			protocol 1.5			93	0.335
http	Microsoft HTTPAPI httpd	2.0	SSDP/UPnP	Windows		85	0.306
http	thttpd	2.24				68	0.245
http	Avtech AVN801 network camera	1.0	UPnP 1.0		webcam	63	0.227
telnet						54	0.195
http	Microsoft IIS httpd					54	0.195
http	PDR-M800	1.0				53	0.191
vnc	VNC		protocol 3.8			45	0.162
http	Apache					45	0.162
http	Cross Web Server					40	0.144
http	Boa HTTPd	0.94.14rc21				39	0.141
ssl	TLS	1.0				37	0.133
http	mini_httpd	1.19 19dec2003				37	0.133
ftp	Serv-U ftpd	6.3		Windows		34	0.123
arcserve	ARCserve Discovery					33	0.119
ftp	Microsoft ftpd			Windows		30	0.108
nntp	INN nntpd		posting ok			27	0.097
flexlm	FlexLM license manager					26	0.094
http	uTorrent WebUI			Windows		24	0.087
http-proxy	Squid http proxy	2.7.STABLE9				24	0.087
http	GoAhead-Webs					23	0.083
http	thttpd	2.25b				21	0.076
http	Apache	2.2.3	(CentOS)			21	0.076
http	Apache		SSL-only mode			20	0.072