This is a Telemarketer selling ADs for facebook's Fairfax newspaper for $20 a week. in my case, it's my local newspaper's Facebook group page called FrontDoor.
Don't agree to anything and don't pay it.

Has been calling me. It rings barely for a split second, not even enough to make a noise on my phone, just a vibrate. Oh well. probably a computer verifying what rings, etc. kids 1337 h&ck1ng with a war dialler? I dunno...

Have received calls for a week or so

It keeps calling me as well! I don't be bothered to pick it up man. But it wakes me up every morning! Pissed off

1 missed call from this number. rang for 3 seconds

Me too! That's really pissed me off!

this number has been calling me several times a day for over a week, I answer and they just hang up - extremely irritating!!

Same story as below, hangs up as soon as I answer. IRRITATING- they're relentlessly calling like 6-10 times in a day.

answered and it hangs up - called 3 times in a day

Same they have called about 12 times today and just hang up when we answer. Very annoying.