I received a call from this number and when I picked up it gave the engaged signal.  When I rang them back the company name was Noah and she said we were probably entered in a competition they had - she was going to find out who called and then call me back.

Found this number on my caller id.

Update - May be related to 'Noah Group', see http://www.mpaq.com.au/content/Employment.menu/Daniel%20Pieterse.pdf last page under references.

Received call today from same number, 2 seconds of silence.

I got one today from this number too but I didn't answer.