Overview of services running on Port 646 TCP.
~33 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 Version InfoOSDevicetypeCount Percent
no match1393941.371
http894926.56
httpSonicWALLfirewall363010.774
chatAIM or ICQ server21806.47
sslSSLv37712.288
httpAIM1.05981.775
telnetLinux telnetdLinux4861.442
httplighttpd1.4.294171.238
httplighttpd1.4.194081.211
httpMicrosoft IIS httpd6.0Windows1160.344
httpGoAhead-Webs httpd1060.315
sshprotocol 1.5950.282
httpApache Tomcat/Coyote JSP engine1.1790.234
httpMicrosoft HTTPAPI httpd2.0SSDP/UPnPWindows760.226
httpthttpd2.24700.208
httpNetwave IP camera http configwebcam680.202
httpAvtech AVN801 network camera1.0UPnP 1.0webcam610.181
httpMicrosoft IIS httpd600.178
telnet540.16
httpPDR-M8001.0380.113
httpApache340.101
vncVNCprotocol 3.8330.098
http-proxySquid http proxy2.6.STABLE12300.089
arcserveARCserve Discovery300.089
httpBoa HTTPd0.94.14rc21270.08
httpmini_httpd1.19 19dec2003250.074
httpHikvision-Webs230.068
httpGoAhead-Webs230.068
httpthttpd2.25b210.062
httpApacheSSL-only mode210.062
httpMbedthis-Appweb2.0.4200.059