I just had two missed calls from this number and i called it back and it just rang out...I dont answer numbers that dont start with my state's area code as usually they are just annoying call centres trying to sell something!!Go away and leave me alone during work hours!

One missed call from this number and then my home phone rang and the caller hung up when they got the answering machine.  I tried calling the number this morning and it rang out.  I am an optus mobile customer too

Hello my dearest Atbin
It is a surprize to see you here!
I have been looking for your contact details since you left iran,
by the way this is my Email: k_keshvarian @ yahoo.com
make me happy by keeping in touch
Yours
Kourosh

I Got a missed call from this number - by the looks of what people are saying - i actually went into an optus store yesterday and called the call centre. so considering most of the reports state 'optus' maybe that is who it is.what i find 'funny', is how we all jump onto google - and google the number - what did we do 30 years ago without the internet. its such a great source we cant now live without

Just got a call back.
Definately Optus.

I just got a call from it now