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 Version Count Percent
no match-/--/-2093368.13
httplighttpd1.4.19847127.57
ibm-db2IBM DB2 Database Server9.07.22670.869
ibm-db2IBM DB2 Database Server9.01.21540.501
ibm-db2IBM DB2 Database Server9.07.51400.456
ibm-db2IBM DB2 Database Server9.07.1850.277
socks5760.247
ibm-db2IBM DB2 Database Server9.07.0760.247
netbios-ssn710.231
ibm-db2IBM DB2 Database Server9.07.4640.208
ibm-db2IBM DB2 Database Server9.05.0330.107
ibm-db2IBM DB2 Database Server9.01.0290.094
ibm-db2IBM DB2 Database Server8.02.0260.085
ibm-db2IBM DB2 Database Server8.01.6260.085
dominoconsoleLotus Domino Console260.085
ibm-db2IBM DB2 Database Server8.02.2220.072
ibm-db2IBM DB2 Database Server9.07.3210.068
ibm-db2IBM DB2 Database Server8.02.3190.062
ibm-db2IBM DB2 Database Server9.05.2160.052