Search REACDR Table for IP Addresses Not Associated with Account

sql
select unique SOURCEDEVICENAME from reacdr where SOURCEGROUP = 'none'

SOURCEDEVICENAME
 
192.168.60.16
192.168.60.13
192.168.60.11
192.168.60.14
192.168.60.12
192.168.60.15
 
6 rows selected.