Overview of services running on Port 1666 TCP.
~9 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
irc	Dancer ircd					3592	38.331
chat	AIM or ICQ server					1484	15.836
no match						1054	11.247
http						653	6.968
http	lighttpd	1.4.29				416	4.439
http	WangWnagSimpleServer	1.0				367	3.916
http	lighttpd	1.4.19				330	3.522
http	Microsoft IIS httpd					173	1.846
http	Microsoft HTTPAPI httpd	2.0	SSDP/UPnP	Windows		106	1.131
p4d	Perforce configuration daemon					105	1.12
ssh			protocol 1.5			82	0.875
http	thttpd	2.24				69	0.736
telnet						46	0.491
http	Boa HTTPd	0.94.14rc21				39	0.416
vnc	VNC		protocol 3.8			36	0.384
arcserve	ARCserve Discovery					35	0.373
http	thttpd	2.25b				34	0.363
nntp	INN nntpd		posting ok			27	0.288
directconnect	Direct Connect P2P			Windows		22	0.235
ftp	Microsoft ftpd			Windows		21	0.224