I got a call from this number at 11:00 p.m. but didn't answer it.Thanks all of you for posting the messages.  I won't answer if they call me again.

On my display, it showed sialk.ca

I just received the call from (416) 555-7777 but I didn't answer and no one left a message. I will see if they call back, and, if so, give them a piece of my mind.

Are they just scammers or what?

Surely some group of thieves trying to get your personal info. Got a call few min back from some guy claiming to from the Federal Health Dept. Haha. Said if I pay $ 2.99 shipping and handling then I would get a federal health card which will give me 60 % discount on all medical bills over my insurance. Haha. Was trying the get my home address and bank a/c no. of credit card no. I asked the health care bill is yet to pass and you have already started selling such stuff. Gave a earful to the caller and cut the call.

i got a call from 1 (416) 555-7777 at 4 in the morning but i answered it not knowing what time it was and a guy with a heavy acsent mabey chinese and he was jsut yelling random stuff i hung up and he called back like a min later and did the same thing i hung up again the area code is from toronto the next day at about 9 at night he called again from an unknown number so i dont know if its a hacker or a scamer or what but im blocking the number from my phone

Today I received a call from this number and could not hear anything, just somebody trying to say something but very far and very unclear. So, I googled the number and found all these comments here. In the meantime the phone rang again and it was my mom in law calling from abroad. I know that she is using a phone card to call abroad. So, this number is probably the number of the phone company that sells these phone cards. So people using these cards could be from anywhere in the world I imagine. Some just  misdial the number and get to you instead of the intended person and some might misuse the card to place a scam call. Just be aware it is somebody from abroad and might not necessarily be a bad person.