Overview of services running on Port 523 UDP.
~30 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
no match-/-2093368.13
httplighttpd847227.574
ibm-db2IBM DB2 Database Server11333.688
socks5760.247
netbios-ssn710.231
dominoconsoleLotus Domino Console260.085