Overview of services running on Port 111 TCP.
~4.29 Million 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
rpcbind		4250226	99.18
http		10793	0.252
no match	-/-	5697	0.133
http	SonicWALL	3683	0.086
chat	AIM or ICQ server	2001	0.047
http	a_63	1873	0.044
http	Microsoft IIS httpd	1096	0.026
http	Apache	1082	0.025
http	lighttpd	898	0.021
ssl	SSLv3	813	0.019
pop3		373	0.009
ssh	OpenSSH	340	0.008
http	Microsoft HTTPAPI httpd	330	0.008
http	AIM	327	0.008
pop3	MailEnable POP3 Server	301	0.007
pop3	Courier pop3d	227	0.005
http	Netwave IP camera http config	208	0.005
http	Avtech AVN801 network camera	201	0.005
http	thttpd	194	0.005
http	Boa HTTPd	192	0.004
pop3	Dovecot pop3d	187	0.004
http	GoAhead-Webs httpd	145	0.003
pop3pw	Mercury/32 poppass service	142	0.003
pop3	Microsoft Exchange 2003 pop3d	142	0.003
pop3	MDaemon pop3d	132	0.003
smtp		114	0.003
vnc	VNC	107	0.002
ssh		107	0.002
http	uc-httpd	101	0.002
http	Apache Tomcat/Coyote JSP engine	99	0.002
pop3	Microsoft Exchange 2007-2010 pop3d	91	0.002
arcserve	ARCserve Discovery	85	0.002
http-proxy	Squid http proxy	80	0.002
telnet		79	0.002
http	Hikvision-Webs	75	0.002
pop3	Microsoft Windows 2003 POP3 Service	62	0.001
http	mini_httpd	61	0.001
directconnect	Direct Connect P2P	57	0.001
smtp	Exim smtpd	56	0.001
pop3	hMailServer pop3d	55	0.001
pop3	qmail pop3d	52	0.001
ftp		51	0.001
http	nginx	50	0.001
ftp	Microsoft ftpd	50	0.001
http	DVR Systems webcam http interface	47	0.001
http	CCProxy	47	0.001
http	PDR-M800	45	0.001
ssh	Dropbear sshd	40	0.001
pop3	tpop3d	40	0.001
http	Gadspot/Avtech AV787 webcam http config	40	0.001
ftp	FileZilla ftpd	39	0.001
pop3	CommuniGate Pro	37	0.001
pop3	Zimbra pop3d	36	0.001
mysql	MySQL	36	0.001
pop3	MailMax pop3d	35	0.001
pop3	Dovecot DirectAdmin pop3d	32	0.001
ftp	vsftpd	30	0.001
smtp	Microsoft ESMTP	29	0.001
pop3	Kerio MailServer POP3 Server	29	0.001
http	Rhinosoft Serv-U httpd	29	0.001
ftp	Serv-U ftpd	29	0.001
http	Cross Web Server	28	0.001
pop3-proxy	UserGate pop3 proxy	27	0.001
vnc	RealVNC Enterprise	26	0.001
http	GoAhead-Webs	26	0.001
pop3-proxy	Zarafa pop3 proxy	24	0.001
http	Mbedthis-Appweb	24	0.001
vnc	RealVNC Personal	23	0.001
http	GeoVision GeoHttpServer for webcams	22	0.001
ftp	ProFTPD	21	0.0
socks-proxy	CCProxy socks proxy	20	0.0
pop3	Lotus Domino POP3 server	19	0.0
openvpn	OpenVPN	19	0.0
http	uTorrent WebUI	19	0.0
ftp	Pure-FTPd	19	0.0
telnet	Microsoft Windows 2000 telnetd	18	0.0
smtp	Microsoft Exchange smtpd	18	0.0
pop3	UW Imap pop3d	18	0.0
telnet	Linux telnetd	17	0.0
pop3	Kerio Connect pop3d	17	0.0
ssh	SCS sshd	16	0.0
pop3	Openwall popa3d	16	0.0
http	Allegro RomPager	16	0.0
smtp	Postfix smtpd	15	0.0
pop3	Qpopper pop3d	15	0.0
http-proxy	CCProxy http proxy	15	0.0
pop3	RaidenMAILD pop3d	14	0.0
http	WYM httpd	14	0.0
http	MS-SDK-HttpServer	14	0.0
telnet	Cisco 1721 router telnetd	13	0.0
socks-proxy	Socks4A	13	0.0
smtp	Communigate Pro SMTP	13	0.0
http	ImagiaTek	13	0.0
http	GoAhead-Webs embedded httpd	13	0.0
http	D-Link DIR-300 WAP http admin	13	0.0
pop3	POPFile pop3d	12	0.0
pop3	Mercury/32 pop3d	12	0.0
ssl	TLS	11	0.0
socks5		11	0.0
pop3	Cyrus pop3d	11	0.0
pop3	CMailServer pop3d	11	0.0
http	avtech httpd	11	0.0
rtsp	Avtech MPEG4 DVR control rtspd	10	0.0
pop3	Zimbra Collabration Suite pop3d	10	0.0
pop3	Tobit David.fx pop3d	10	0.0
pop3	SmarterMail pop3d	10	0.0
http	Router	10	0.0
http	D-Link/Airlink IP webcam http config	10	0.0
http	dcs-lig-httpd	10	0.0
http	AIM HTTP	10	0.0