also had a missed call from this number this am... my guess is an insurance company of some sort as i have recently made on line quotes

Just had a missed call from his number, I'll find out and get back :-)

You can register your name and number with the Do Not Call Register it is is managed by the Australian Communications and Media Authority (the ACMA). It only stops telemarketers calling you not charities. Go to this link and it will provide you with all the info you require to get rid of some of those pesty callers.     https://www.donotcall.gov.au/consumerfaq.cfm    
I am a stay at home mum and have had to go to the expense of getting caller id just to advoid them... Hope this helps someone :)

i've had 2 missed calls from this number in the last 2 days

yes I did get it as well .. same story - tele marketers trying to sell some Superannuation  product

I wonder how they get the numbers ?

If someone can please advice how to stop this type of calls please? I will be grateful

Thanks in advance

You can register your name and number with the Do Not Call Register it is is managed by the Australian Communications and Media Authority (the ACMA). It only stops telemarketers calling you not charities. Go to this link and it will provide you with all the info you require to get rid of some of those pesty callers.     https://www.donotcall.gov.au/consumerfaq.cfm     I am a stay at home mum and have had to go to the expense of getting caller id just to advoid them... Hope this helps someone :)