Overview of services running on Port 1501 TCP.
~17 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
no match	-/-	5856	32.704
irc	Dancer ircd	4021	22.456
chat	AIM or ICQ server	1977	11.041
http	WangWnagSimpleServer	963	5.378
http	lighttpd	826	4.613
http		760	4.244
eggdrop	Eggdrop IRC bot console	738	4.122
http	Microsoft IIS httpd	257	1.435
http	thttpd	229	1.279
http	Apache	224	1.251
http	Boa HTTPd	167	0.933
http	Microsoft HTTPAPI httpd	159	0.888
http	GoAhead-Webs httpd	114	0.637
ovm-manager	Oracle VM Manager	102	0.57
http	Virata-EmWeb	100	0.558
ssh		96	0.536
ssh	OpenSSH	90	0.503
vnc	VNC	88	0.491
citrix-ica	Citrix Metaframe XP ICA	68	0.38
telnet		60	0.335
arcserve	ARCserve Discovery	54	0.302
http-proxy	Squid http proxy	47	0.262
ftp	Microsoft ftpd	45	0.251
time		43	0.24
http	Boa httpd	41	0.229
http	Apache Tomcat/Coyote JSP engine	35	0.195
nntp	INN nntpd	28	0.156
ftp		28	0.156
http	nginx	25	0.14
mysql	MySQL	24	0.134
telnet	BSD-derived telnetd	23	0.128
ssl	TLS	23	0.128
http	Varnish	22	0.123
http	Hikvision-Webs	22	0.123
http	Panasonic webcam http config	21	0.117
ftp	ProFTPD	21	0.117
ftp	FileZilla ftpd	21	0.117
smtp		18	0.101
remoting	MS .NET Remoting services	17	0.095
ftp	vsftpd	17	0.095
xml		16	0.089
http	http server 1.0	15	0.084
vnc	RealVNC Personal	14	0.078
smtp	Microsoft ESMTP	14	0.078
ftp	Pure-FTPd	14	0.078
http-proxy	Microsoft Foundation Class httpd	13	0.073
smtp	Microsoft Exchange smtpd	10	0.056
http	World Client WDaemon httpd	10	0.056