I thought this was a private number and called back from a missed call - got a recorded message talking about 'If you want to hear our privacy notice'; obviously commercial so hung up.
Anonymous on (02) 9823 4352
Called back and the number was busy.
Darwin Motor Group on (08) 8946 4444
I called back number (08) 8946 4444 reached IVR for a company called Darwin Motor Group.
Anonymous on (02) 7010 2176
Called this pest number back and "the number you have called is not connected"
I Called Back on (02) 8066 5575
I called back number (02) 8066 5575 rang once then goes to busy tone.
I Called Back on 0410 164 394
I called back number 0410 164 394 reached voice mail but did not say for what company.