I have been getting random calls on my cell phone recently.  This number just called me a few seconds ago.  I didn't pick up.

Got a call about it from some holiday place or something.
Person spoke really broken english (Indian accent) and said I filled out a form to win a prize in zellers or walmart or somewhere - except i dont shop there nor do i fill out forms like that.  said he has my address, which is right, except he said i live in north york, which is what the postal office says, i always say toronto.
told him i didnt fill anything out since he called and ask for Mr. or Mrs... and there is no Mrs. so couldnt have been me. Asked not to be called again and if I do it goes to the CRTC as i am registered with teh do not call list. He abruptly stopped talking and i hung up.

I just tested my Skype service, this was the number that appeared.  So whoever is calling you is using Skype

Here's some info I found....This is one of some generic numbers (also (416) 252-0153..etc) used by Skype's gateway for making pc to phone calls. Anyone using Skype service (usually in GTA)for such calling might display this on your caller ID.

I just received a call on my office number...it was from Signature Training Canada...but the number they left to call back was an 866 number.

this number has been calling me since Nov; knows my name, calls my home and cell numbers - usually just keeps saying hello, sometimes gets very rude.  i have blocked the number (of course Rogers charges monthly for this "safety" feature).  Police involved - it's a Skype number and is untracable.  many police divisions involved, plus RCMP.  nothing you can do but block the number.  although it somehow unblocked itself and i received calls over the weekend - didn't answer.  dirtbag.