Got this call on Sunday (25/5.) No message and "number discontinued" result on call back

Got same message from (02) 9313 1320 on my mobile. Am wondering is this a marketing ploy by the phone cards of the same name i.e. people obviously googling this message so their seo goes up.

Also had the same number call me, then hung up ........................

Just had a missed called from this number.
Also from 02 5252 5256, which I suspect to be the same persons.

Same. Hello World

Just rang and I missed the digital message but assume it was as previously mentioned. Nuisance phishing call. Maybe we are Manchurian cadidates.

Also had 2 calls from this number [also 02 52525256] with the same opening "hello world" then hung up. Backtracking as best as I could reveals these numbers are "no longer connected". Why isn't Telstra stopping this rubbish!!!!

Same here, " Hello World"... Probably an alien calling from outer-space!

Blocked this number and reporting to telstra

When answered, person just said 'Hello World' and hung up. Odd. Anyhow, if it is for Solar installation they are too late.

I just had the same. Answered the call and heard 'hello world' end of call. Phoned back and number disconnected. Have now blocked this caller.

They say "hello world" & hang up & if you are curious enough to google it, which is probably what they want you to do, it's all advertising garbage

Wtf

Just had a phone call from this number when I answered it sadi 'hello world' of course when you ring up the number is not connected. Hello world is an early programming technique over mobile phones and digital devices on connection the program is able to display or say the words in the language of the country of origin. Sounds like a scam being born to me, don't answer it. If you can block it and continue to report it.

Just missed this call. Same thing when I rang back, this number is not connected.

Rang said hello world and hung up. so stupid and immature. blocking it.

Yeah, got a call at 1pm today from 0252525252. mechanical female voice saying "Hello world" and then hung up.....W.T.F.?

Rang, electronic voice said "hello world"... Extremely creepy.

Had a missed call from this number 25/5/14. I rand it back and it said it's disconnected. Am adding it to blocked calls now.

same as the others - get a call that says hello and then hangs up. prob trying to get some sort of access into your phone and contacts..