Overview of services running on Port 137 UDP.
~519 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
netbios-nsMicrosoft Windows XP netbios-ssn33725764.889
netbios-nsSamba nmbd484099.314
no match-/--/-482749.288
netbios-nsMicrosoft Windows Mobile netbios-ssn442528.514
netbios-nsMicrosoft Windows NT netbios-ssn198543.82
netbios-nsMicrosoft Windows netbios-ssn122432.356
netbios-nsNovell NetWare netbios-ns2690.052
netbios-nsApple Mac OS X netbios-ns1550.03
dominoconsoleLotus Domino Console240.005