It's NRMA back to base alarm services. They call if your home alarm has been set-off

I receive Genuine calls from Telstra SNP monitoring centre

Definitely an alarm monitoring call - they work for Telstra SNP and other security providers. To call them back you need to call 1300 364 488

These guys rang me at 1:53am. What a nuisance

Caller: Security back to base company

It isn’t an NRMA security company. It’s a back to base security company that monitors private and public companies.

Alarm monitoring call centre - altho I don't have an alarm and they gave a different address.

Called at 548 am while I was overseas / I don’t have an alarm ....

Crazy midnight call @2:30am

NRMA Back to Base monitoring system

It wasn't NRMA in my case - I have no dealings with NRMA. This number called at 8.48 on Boxing Day morning - left no message, no-one there on call back. Seems to be yet another intrusive telemarketer.

I called back number (02) 9600 0060 reached voice mail but did not say from what company.

I called back number (02) 9600 0060 just kept on ringing no one answered the call and never got any voice mail.