Overview of services running on Port 13 UDP.
~97 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 Count Percent
no match-/--/-2719728.002
daytimeMicrosoft Windows USA daytime1959120.171
daytime1833118.874
daytimeMicrosoft Windows International daytime1424814.67
httplighttpd1.4.1982858.53
daytimeMicrosoft Windows daytime50795.229
daytimeSun Solaris daytime33423.441
daytimeTardis 2000 daytime5930.611
daytimeMicrosoft Windows 7 daytime870.09
chargen770.079
daytimeHP-UX daytime720.074
netbios-ssn570.059
socks5500.051
chargenxinetd chargen500.051
daytimeTrueTime nts100260.027
dominoconsoleLotus Domino Console160.016