Overview of services running on Port 518 UDP.
~40 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	Info	OS	Devicetype	Count	Percent
no match						23370	57.881
http	lighttpd	1.4.19				9668	23.945
talk	Talk server					7061	17.488
netbios-ssn						90	0.223
utorrent-udp	uTorrent UDP listener			Windows		83	0.206
socks5						63	0.156