Keep getting calls from this number, call back and says the number not connected.
Assuming more spam calls

Same with this no: keeps calling but no one there when you answer and disconnected when you call back. Now using phone no 06513721 and same response number disconnected.

Astralian something could not hear well i ask "who is it" they hang up been called several times over last week and when call number back recorded message states number disconnected

Missed calls from this number who left no message when I called it back it said the number was disconnected

Phone rang then stopped and rang again immediately after. When I answered could hear a lot of noise in background. When I called the number it states that the number is disconnected

Hangs up either just after I answer or after one ring of the phone. No idea who it is

I had a missed call, when I called back it states number is not connected, obviously spam

Second time that I have received a call from this number. Once in the middle of the day and once in the evening. Assuming it is a spam call.

The person called and said he is educating home owners on a government plan or something. could be a scam.

Missed call from this number, when calling back "Optus advises you that this Number has been disconnected".

I called back number (02) 9654 2948 rang 3 times then goes to busy tone.