This is one of several mobile number used by a dirty rotten collection agency i.e. CPA who are ruthless and will not leave a message. all mobile numbers begin with "0451 518..."

It's these guys
http://www.appcogroup.com.au/

I've only started getting the calls since agreeing to donate to Peter Mac cancer institute. It's like at least three calls a day they are making to both home and mobile phone. So annoying!

I've also just donated to charity - The Smith Family, second call in 2 hours from 0451 518 xxx numbers..

I signed up for Breast Cancer charity.......lots of calls

scam

Yes I recently signed up with Starlight foundation and now receiving calls from this number. Silence at other end.

Received two calls today from 0451 518 4XX. Both while the baby was sleeping. Silence on the other end when I answer. Called back and got the recorded message but no results when I tried to Google the company. I haven't even signed up to any charities recently.

I also recently donated to brest cancer charity and now these calls won't stop. I never answer calls from unknown numbers and they don't leave a message. This is very annoying and from what most people who have commented on these collection of numbers they have all recently donated to a charity. You try to do a good thing and your number appears to be sold to some calling list. Not happy.

I signed up to Peter Mac. Started receiving calls from the following numbers:
0451 518 466
0451 518 440
Within 1 1/2 hours of each other. No message left.

I've been getting a series of phone calls from this number as well. Both from 465 and 466. Yesterday I signed up to donate to support the ICU of a local hospital. From reading everyones posts, I dare say it is the organisation that manages it.

I just bought a $20 raffle ticket off VIP RSL to support veterans and have received constant calls from numbers starting 0451 518 etc... Really annoyed. I only stopped to donate because I thought I could hand over cash and they made me fill out a form with credit card details. Will be calling to cancel.

Also just signed up to a charity. They don't leave a message

I've had 4 calls in 4 days from mobiles starting with 0418 518 4xx (40, 16, 66 and 75 to date). Have recently signed up with 2 charities. Keeping my phone on silent and vibrate and checking the number before I answer/ignore. Of course no message left.

Answered and got silence, I also just signed up to a charity

Also getting calls with no talking and hanging up as I answer, 2 days after I've signed up to donate to canteen cancer

Thanks to everyone for posting their comments. It's interesting - I've recently signed up to donate to Unicef and started receiving calls from the mobile no 0451 518 466 - and, same as others, there has been no message. I'll be ignoring them now that I've read what others have said, but it's very irritating when they won't leave a message.

I have received dozens of calls today from this number and others starting with 0451 518 4XX. I *also* received the calls exactly two days after donating to a charity - Heart Research Institute, what a coincidence. I'll be cancelling my donation to them.

Two calls within two minutes, one hung up, other was nothing but silence. Funny that it happened two days after signing up to donate to a charity...

Same here ... after giving details to Red Cross. Now getting numbers ending in 466, 443, 440...

They just tried me, got silence and indistinguishable robot message when I called back.