Overview of services running on Port 2000 TCP.
~1.71 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
bandwidth-test	MikroTik bandwidth-test server	1173165	68.684
winbox	MikroTik WinBox management console	161598	9.461
no match	-/-	105421	6.172
telnet		97903	5.732
sieve	Cyrus timsieved	22142	1.296
rifa-dvr	Rifatron DVR	16461	0.964
http		15956	0.934
sieve	Dovecot timsieved	14658	0.858
ssl	SSLv3	14642	0.857
jetdirect	JetDirect	9687	0.567
ssl	TLSv1	8968	0.525
http	RemotelyAnywhere remote PC management httpd	8148	0.477
irc	Dancer ircd	4095	0.24
http	SonicWALL	3698	0.217
http	Apache	3390	0.198
http	Boa HTTPd	3183	0.186
chat	AIM or ICQ server	2593	0.152
http	Microsoft IIS httpd	2385	0.14
ssh	OpenSSH	1984	0.116
sieve	Dovecot Pigeonhole sieve	1907	0.112
http	thttpd	1586	0.093
http	GeoVision GeoHttpServer for webcams	1432	0.084
http	lighttpd	1384	0.081
ftp		1277	0.075
http	Microsoft HTTPAPI httpd	1252	0.073
http	Avtech AVN801 network camera	1230	0.072
http	GoAhead-Webs httpd	990	0.058
http	Cross Web Server	984	0.058
sieve	pysieved	974	0.057
http	Hikvision-Webs	966	0.057
http	mini_httpd	790	0.046
ftp	Pure-FTPd	728	0.043
http	uc-httpd	726	0.043
http	Netwave IP camera http config	717	0.042
http	World Client WDaemon httpd	671	0.039
http	Innovative Interfaces Innopac httpd	590	0.035
irc-proxy	ShroudBNC irc-proxy	544	0.032
http	WangWnagSimpleServer	542	0.032
http	D-Link DIR-300 WAP http admin	540	0.032
http	WYM httpd	485	0.028
telnet	NASLite-SMB/Sveasoft Alchemy firmware telnetd	474	0.028
vnc	VNC	426	0.025
nbd	Network Block Device	405	0.024
arcserve	ARCserve Discovery	368	0.022
http	AIM	351	0.021
http	PDR-M800	347	0.02
http	httpd 1.1	334	0.02
http	MiniServ	322	0.019
http	Apache Tomcat/Coyote JSP engine	317	0.019
pop3-proxy	FreePOPs pop3 proxy	309	0.018
ftp	Microsoft ftpd	300	0.018
http	Boa httpd	296	0.017
ssh	Cisco SSH	287	0.017
http-proxy	Squid http proxy	274	0.016
http	Gadspot/Avtech AV787 webcam http config	274	0.016
http	DVR Systems webcam http interface	263	0.015
socks5		226	0.013
http	GM Streaming Server httpd	219	0.013
sieve	Cyrus timsieved Murder	215	0.013
http	ExpertAssist	209	0.012
sieve	DBMail timsieved	206	0.012
telnet	ser2net telnetd	187	0.011
http	Mbedthis-Appweb	185	0.011
netbios-ssn		182	0.011
http	XMLRPC	178	0.01
http	WebCit	171	0.01
ftp	FileZilla ftpd	167	0.01
rtsp		166	0.01
http	POSIX	165	0.01
http	Techno Vision Security System http config	162	0.009
http	VNC Server Enterprise Edition	160	0.009
http	ScriptLogic DesktopAuthority httpd	155	0.009
http	Jetty	152	0.009
http	nginx	145	0.008
insight-manager	Consul InSight Manager	142	0.008
http	Allegro RomPager	140	0.008
telnet	Adtran TA 600R router telnetd	135	0.008
ftp	Serv-U ftpd	133	0.008
http	uClinux-httpd	127	0.007
http	RemoteSupportManager	123	0.007
vnc	RealVNC Personal	122	0.007
ssh		122	0.007
http	CherryPy httpd	120	0.007
ftp	ProFTPD	118	0.007
directconnect	Direct Connect P2P	109	0.006
http	Virata-EmWeb	108	0.006
ssh	Dropbear sshd	107	0.006
shoutcast	SHOUTcast server	106	0.006
vnc		105	0.006
telnet	Linux telnetd	97	0.006
openvpn	OpenVPN	97	0.006
http	Router	96	0.006
http	MultView WEB Server V1.1	96	0.006
xml		93	0.005
http	Network Digital Recorder	90	0.005
http	http server 1.0	90	0.005
http	UPnP	88	0.005
spotify-login	Spotify login server	87	0.005
irc-proxy	psyBNC	86	0.005
vnc-http	VNC Server Enterprise Edition httpd	79	0.005
mysql	MySQL	76	0.004
http	Httpd	76	0.004
http	MS-SDK-HttpServer	75	0.004
tandem-print	Sharp printer tandem printing	74	0.004
ftp	vsftpd	73	0.004
rtsp	Avtech MPEG4 DVR control rtspd	72	0.004
vnc	RealVNC Enterprise	70	0.004
http	TP-LINK Router	69	0.004
http	WindWeb	63	0.004
pop3	qpopper	62	0.004
http	ReefAngel	62	0.004
http	GoAhead-Webs embedded httpd	62	0.004
http	httpd	61	0.004
http	Network Camera	57	0.003
http	VopSrv	55	0.003
telnet	Pocket CMD telnetd	54	0.003
svnserve	Subversion	54	0.003
http	dcs-lig-httpd	52	0.003
http	uTorrent WebUI	51	0.003
http	HTTPServer	50	0.003
solfe	HP PNM Solid FlowEngine	49	0.003
http	PunkBuster http config	48	0.003
http	Linksys router http config	48	0.003
http	ScriptLogic ExpertAssist remote management httpd	47	0.003
http	Xitami httpd	46	0.003
http	H3C-Miniware-Webs	45	0.003
smtp		42	0.002
http	wg_httpd	42	0.002
http	Indy	42	0.002
http	Z-World Rabbit	41	0.002
http	Intoto httpd	41	0.002
ftp	FreeBSD ftpd	41	0.002
http	Cisco IOS http config	40	0.002
http	TwistedWeb httpd	39	0.002
http	OwnServer1.0	39	0.002
dominoconsole	Lotus Domino Console	39	0.002
http	TRENDnet TV-IP100 or TV-IP110 webcam display httpd	37	0.002
smtp	Microsoft ESMTP	35	0.002
http	WEBrick httpd	35	0.002
http	W3MFC	35	0.002
http	Vivotek IP7131 Network Camera http config	34	0.002
http	Microsoft ISA httpd	34	0.002
telnet	SMC SMC2870W Wireless Ethernet Bridge	33	0.002
telnet	Allied Telesis x900-series switch telnetd	33	0.002
nntp	INN nntpd	33	0.002
mongodb	MongoDB	33	0.002
http	Netgear DG834 router http config	33	0.002
ftp	Gene6 ftpd	33	0.002
aperio-aaf	Aperio Algorithm Framework	33	0.002
http	WebServer	32	0.002
http	TRENDnet TV-IP110w or TV-IP422W webcam display httpd	32	0.002
http	HTTP Software 1.1	31	0.002
http	GoAhead	31	0.002
ssh	Bitvise WinSSHD	30	0.002
http	Router Webserver	30	0.002
tcpwrapped	BSD TCP Wrappers	29	0.002
http	webserver	29	0.002
http	Draytek Vigor ADSL router webadmin	29	0.002
http	D-Link/Airlink IP webcam http config	27	0.002
smtp	Microsoft Exchange smtpd	26	0.002
smtp	Exim smtpd	26	0.002
remoting	MS .NET Remoting services	26	0.002
http	Waveplus HTTPD	26	0.002
ssl	TLS	25	0.001
http	go1984 httpd	25	0.001
telnet	AMOS **********	24	0.001
telnet	Adtran TA 608 router telnetd	24	0.001
secure-socket	CA Secure Socket Adapter	24	0.001
http	uhttpd	24	0.001
http	eCensus Compliance Service. v2.14 (05.07.2010)	24	0.001
giop	CORBA naming service	24	0.001
telnet	Microsoft Windows XP telnetd	23	0.001
http	Airlink 101 or TRENDnet TVIP-422w webcam http config	23	0.001
http	Wireless Network Camera	22	0.001
time		21	0.001
smtp	Postfix smtpd	21	0.001
http	DD-WRT milli_httpd	21	0.001
telnet	Adtran TA 616 router telnetd	20	0.001
smtp	Symantec Enterprise Security manager smtpd	20	0.001
smtp	Sendmail	20	0.001
http	uTorrent utserver web interface	20	0.001
http	Ubicom	20	0.001
http	GS-Webs	20	0.001
http	Bchat	20	0.001
telnet	Cisco 1721 router telnetd	19	0.001
ovm-manager	Oracle VM Manager	19	0.001
http	libwww-perl-daemon httpd	19	0.001
http	HttpFileServer httpd	19	0.001
http	D-Link DCS-910 webcam http config	19	0.001
rsync		18	0.001
http	WebFS httpd	18	0.001
http	micro_httpd	18	0.001
http	GoAhead-Webs	18	0.001
ssl	Microsoft IIS SSL	17	0.001
sdlog	RSA SecureID Ace Server	17	0.001
http	Vivotek 3102 Camera http config	17	0.001
http	QNAP TS-219P NAS http config	17	0.001
http	Network Camera with Pan	17	0.001
http	Lanswitch - V100R003 HttpServer 1.1	17	0.001
http	Genetic Lifeform and Distributed Open Server 1.0.9	17	0.001
http	dvr1614n web-cam httpd	17	0.001
http	D-Link Internet Camera	17	0.001
http	ASP.NET Development Server/	17	0.001
upnp	Portable SDK for UPnP devices	16	0.001
upnp	Portable SDK for UPnP	16	0.001
http	Wireless Network Camera with Pan	16	0.001
http	ImagiaTek	16	0.001
http	HTTPsrv	16	0.001
http	D-Link DCS-920 webcam http config	16	0.001
http	Ubicom httpd	15	0.001
http	Telenor MobileStatus Server / Telenor Release 2.6.2	15	0.001
http	BlueIris-HTTP	15	0.001
ftp	NET Disk/NetStore ftpd	15	0.001
vnc	Apple remote desktop vnc	14	0.001
telnet	Draytek Vigor ADSL router telnetd	14	0.001
ssh	WeOnlyDo sshd	14	0.001
http	WEB SERVER	14	0.001
http	RealVNC	14	0.001
http	Caucho Resin JSP engine	14	0.001
http	ADH-Web httpd	14	0.001
ftp	Synology DiskStation NAS ftpd	14	0.001
ftp	bftpd	14	0.001
nagios-nsca	Nagios NSCA	13	0.001
http	WindRiver-WebServer	13	0.001
http	Transmission BitTorrent management httpd	13	0.001
http	Thin	13	0.001
http	NEC Electra Elite IPK II WebPro	13	0.001
http	Mobotix Camera http config	13	0.001
http	HTTPD 1.0	13	0.001
http	avtech	13	0.001
ftp	Sonic FTP Server	13	0.001
telnet	MPLAN800A	12	0.001
http	ise GmbH HTTP-Server v2.0	12	0.001
http	Gnway Web Server	12	0.001
ftp	Dreambox ftpd	12	0.001
vnc-http	Ultr@VNC	11	0.001
tinc	tinc vpn daemon	11	0.001
telnet	BSD-derived telnetd	11	0.001
http	XWeb 1.0	11	0.001
http	Vivotek Network Camera http config	11	0.001
http	Rex media encoder http config	11	0.001
http-proxy	F5 BIG-IP load balancer http proxy	11	0.001
http	Panasonic webcam http config	11	0.001
http	Ipswitch IMail web service	11	0.001
http	httpd-plustek	11	0.001
http	CCcam card sharing system http config	11	0.001
http	AIM HTTP	11	0.001
http	WebServer(IPCamera_Logo)	10	0.001
http	Webs	10	0.001
http	WebLogic httpd	10	0.001
http	Sagem F@st router httpd	10	0.001
http-proxy	Ncat http proxy	10	0.001
http-proxy	CCProxy http proxy	10	0.001
http	Panasonic DVR slinger http config	10	0.001
http	IP_SHARER WEB	10	0.001
http	Indy httpd	10	0.001
http	HTTP Server 1.0	10	0.001
http	DreamConnection WebServer V0.2	10	0.001
http	D-Link printer/webcam http config	10	0.001
http	D-Link DCS-2120 webcam http config	10	0.001
flexlm	FlexLM license manager	10	0.001