Same as above - call back is an auto message for a 'call centre host' and my phone also no call registered.

I had 2 calls from this number on 13/09/11 and just had another call from them then! No message left, its getting annoying.

Been getting lots of calls from this number with no message left. I am on the do not call register and would like to get off this person's call list.

Gahhhh! Someone keeps calling me from this number and hangs up!

Received a call from this number and they hung up when I answered.  I don't call back unless I have some idea who the person or company is
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I've had 3 calls from this number and several from very similar numbers in the last week. When I answer they hang up straight away, its says it a call centre of some sort when I ring it it getting very annoying.