This number claims to be from the Australian Bureau of Statistics... Have had numerous calls from this no over the past 12 months. No messages is ever left and calls as late as 10pm at night and even calls on Sunday.

I submit a message earlier in regards to the number (07) 3341 6525.
I did call the number once more at 2:15am on the 15th of April, 2012, to see if there was a simple explanation to them calling my girlfriend, but had the same result as earlier, which was just silence.
This message is to help build a picture to the earlier message and both my girlfriend and i can be contacted on the same numbers as mentioned before. Thankyou you once again and we look forward to a reply in the near future. Sincerely mark handley

This person call me on my number, 0433 693 777, and stay quiet on the phone twice at 12:05 and 12:06am on the 15.04.2012. I dont know this number so my boyfriend call them back at 12:38am and they picked up but stay silent again. Mark handley is my partner and his number is 0421 492 251. Can u please call him back if u find any resolution to this puzzling instance.Thank you for your time in this matter and look forward to a reply.