Overview of services running on Port 625 TCP.
~21 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	Count	Percent
http		9645	44.239
http	SonicWALL	3707	17.003
chat	AIM or ICQ server	2208	10.128
no match	-/-	940	4.312
http	lighttpd	873	4.004
ssl	SSLv3	793	3.637
http	AIM	613	2.812
http	Apache	318	1.459
smtp		234	1.073
http	Microsoft IIS httpd	229	1.05
smtp	Sendmail	156	0.716
http	thttpd	150	0.688
http	GoAhead-Webs httpd	109	0.5
smtp	Postfix smtpd	101	0.463
ssh		98	0.45
http	Apache Tomcat/Coyote JSP engine	95	0.436
ssh	OpenSSH	88	0.404
http	Microsoft HTTPAPI httpd	80	0.367
http-proxy	Squid http proxy	75	0.344
http	Netwave IP camera http config	74	0.339
vnc	VNC	70	0.321
http	Avtech AVN801 network camera	63	0.289
telnet		51	0.234
http	Boa HTTPd	49	0.225
http	PDR-M800	45	0.206
smtp	Microsoft ESMTP	31	0.142
arcserve	ARCserve Discovery	29	0.133
smtp	Microsoft Exchange smtpd	27	0.124
http	mini_httpd	26	0.119
mysql	MySQL	25	0.115
http	Hikvision-Webs	23	0.105
http	GoAhead-Webs	22	0.101
ftp	Microsoft ftpd	22	0.101
http	Mbedthis-Appweb	20	0.092
ftp	vsftpd	20	0.092
smtp	Exim smtpd	19	0.087
http	uc-httpd	17	0.078
ftp		17	0.078
http	nginx	16	0.073
directconnect	Direct Connect P2P	15	0.069
http	Gadspot/Avtech AV787 webcam http config	14	0.064
http-proxy	F5 BIG-IP load balancer http proxy	13	0.06
ftp	Pure-FTPd	13	0.06
http	GeoVision GeoHttpServer for webcams	12	0.055
http	uTorrent WebUI	11	0.05
http	DVR Systems webcam http interface	11	0.05
ftp	Serv-U ftpd	11	0.05
http	RemotelyAnywhere remote PC management httpd	10	0.046
ftp	ProFTPD	10	0.046