Overview of services running on Port 2161 TCP.
~51 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
http950318.438
sslTLS724514.057
sslSSLv3719113.953
ircDancer ircd40297.817
telnetCisco 1721 router telnetd38737.515
httpSonicWALL36777.134
telnetCisco IOS telnetd28025.437
telnet24984.847
chatAIM or ICQ server21404.152
no match-/-14282.771
http-proxyEZproxy web proxy10031.946
httplighttpd9521.847
httpApache6851.329
http-proxyMikroTik http proxy6841.327
httpAIM6101.184
telnetCisco router telnetd4090.794
httpMicrosoft IIS httpd2570.499
httpWangWnagSimpleServer2300.446
httpGateway-Webs1920.373
httpGoAhead-Webs httpd1600.31
httpthttpd1470.285
ssh970.188
httpMicrosoft HTTPAPI httpd930.18
sshOpenSSH860.167
httpApache Tomcat/Coyote JSP engine800.155
httpNetwave IP camera http config710.138
httpAvtech AVN801 network camera640.124
httpBoa HTTPd610.118
httpPDR-M800550.107
vncVNC530.103
http-proxySquid http proxy500.097
ftpMicrosoft ftpd410.08
arcserveARCserve Discovery360.07
sslmulti-vendor SSL340.066
httpmini_httpd290.056
nntpINN nntpd280.054
mysqlMySQL280.054
httpGoAhead-Webs250.049
httpHikvision-Webs210.041
ftp210.041
httpuTorrent WebUI200.039
ftpFileZilla ftpd200.039
httpMbedthis-Appweb190.037
httpGoAhead-Webs embedded httpd190.037
httpnginx180.035
ftpProFTPD170.033
ftpvsftpd160.031
ftpMikroTik router ftpd160.031
httpuc-httpd140.027
httpGeoVision GeoHttpServer for webcams140.027
ftpPure-FTPd140.027
httpGadspot/Avtech AV787 webcam http config120.023
httpDVR Systems webcam http interface120.023
httpCross Web Server120.023
upnpPortable SDK for UPnP devices110.021
smtpMicrosoft Exchange smtpd110.021
http-proxyF5 BIG-IP load balancer http proxy110.021
httpAIM HTTP110.021
smtpMicrosoft ESMTP100.019