Overview of services running on Port 44 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
ssl	SSLv3					1369	18.836
chat	AIM or ICQ server					1230	16.924
no match						1048	14.419
http						508	6.99
ssh	OpenSSH	4.3	protocol 2.0			359	4.939
http	Microsoft IIS httpd					228	3.137
http	lighttpd	1.4.19				211	2.903
http	GoAhead-Webs httpd					172	2.367
http	Microsoft HTTPAPI httpd	2.0	SSDP/UPnP	Windows		145	1.995
ssh	OpenSSH	5.4p1	FreeBSD 20100308; protocol 2.0	FreeBSD		87	1.197
ssh	MikroTik RouterOS sshd		protocol 2.0	Linux	router	82	1.128
http	thttpd					74	1.018
ssh			protocol 1.5			72	0.991
ftp	Microsoft ftpd			Windows		68	0.936
ssh	OpenSSH	5.1p1	FreeBSD 20080901; protocol 2.0	FreeBSD		64	0.881
telnet						63	0.867
ssh	OpenSSH	5.5p1 Debian 6+squeeze2	protocol 2.0	Linux		43	0.592
ssh	Dropbear sshd	0.52	protocol 2.0	Linux		37	0.509
ssh	OpenSSH	5.3	protocol 2.0			34	0.468
http	Hikvision-Webs					32	0.44
ssh	OpenSSH	5.9p1 Debian 5ubuntu1	Ubuntu Linux; protocol 2.0	Linux		31	0.427
http	Boa HTTPd	0.94.14rc21				30	0.413
ftp						29	0.399
http	thttpd	2.25b				27	0.371
http	Apache Tomcat/Coyote JSP engine	1.1				27	0.371
ssh	OpenSSH	5.8p2_hpn13v11	FreeBSD 20110503; protocol 2.0	FreeBSD		26	0.358
ssh			protocol 2.0			25	0.344
ssh	OpenSSH	5.2	protocol 2.0			22	0.303
ftp	vsftpd	2.0.8 or later				21	0.289
ssh	OpenSSH	5.9	protocol 2.0			20	0.275
ssh	OpenSSH	5.3p1 Debian 3ubuntu7	Ubuntu Linux; protocol 2.0	Linux		20	0.275
ssh	OpenSSH	5.1p1 Debian 5	protocol 2.0	Linux		20	0.275
ftp	FileZilla ftpd	0.9.41 beta		Windows		20	0.275