Overview of services running on Port 37 UDP.
~75 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
time		37361	49.534
no match	-/-	28782	38.16
http	lighttpd	8886	11.781
netbios-ssn		254	0.337
socks5		90	0.119
dominoconsole	Lotus Domino Console	31	0.041
http		12	0.016