At 8 AM on April 17 2018 I got a call from (416) 343-7050. Message left was just some noise. When I called the number, I got the old "number is no longer in service"...That night at 1:09 AM I heard a bang on my door. I come out and there is a police officer standing at my door, his car in my driveway. He says "Do you have a problem with your phone?" I said "I don't know and I don't care, its 1 AM and I was sleeping". He said that he had a message on his "system" that I had a problem with my phone and because I can't call 911 he had to advise me of this. We got into an argument and I said to him that I didn't think it was necessary for him to be banging on my door in the middle of the night about my phone. Anyways it turned out that my phone was actually just fine.
Next day I called the police and gave them my story. They were able to check it and told me that someone called 911 from my number and than the call was disconnected. In those situations police are obligated to visit the residence to make sure that everything is OK.
My experience with 416-343-7050 is similar to many other comments and that's why I posted it. It has to do with the police and 911 calls. Unfortunately the cops were unwilling to pursue this with me to try and figure this out so I think this will continue to happen.
I think its time that CRTC or the govt. or somebody got after Bell and Rogers and got them to properly police their networks.
It should not be possible for anyone to call from a number "that is no longer in service"!? This nuisance that millions of customers have to endure should end. Of course Bell and Rogers have really no incentive to fix this. Not only it would cost them money but also they would not be making as much money from selling unlisted numbers and call display services. Corporate greed wins again and consumers lose. Its a disgrace.

Just got a call from this number around 2am!
When I try to call back the call doesn't go through

Its Toronto Police Parking Enforcement. Typically they only call you when they have arrived at your place because you have placed a call to them for some parking infraction on your property.
The reason they dont answer if you call back is because you need to go through switch board. This number does not accept incoming calls.

I just received a call from this number, but I did not pick it up.
I have a Mobilicity phone and it shows that I made an Emergency call using 112, which is doubtful since my phone was in my pocket and turned off.
I tried calling the number back, and received message "wireless number is unavailable at this time, please try again later"...

I just got call from (416) 343-7050 , i tried calling back but getting busy signal , call doesn't go anywhere.

i got a call around 10-1030.. i use alcatel android and it also has an emergency option when your screen is locked... i think it may be the police it sounds like it from all the other messages here..i was just in the movie theatre and fumbling for my phone so i musta pressed the emergency button (which is quite large) on the screen. I tried calling back and all i got was the busy tone.. yikes.

100% - it is a police line but you can't call it, they call you from it. Didn't know I'd called 9-1-1 until they called me back. This came up on my BB and when I checked my outgoing calls, I must have accidentally dialled. The lady said they get about 1000 accidental 911 in a day!!

Missed a call from this number but could not call the number back.

Now it makes sense, same thing happened to me.  On my call log, it said that I did make an emergency call.  I have a blackberry, and when it is locked, and a key is pressed, there is an option to make an emergency call.  I guess enough keys were pressed, by accident, to make that emergency call.I'm not sure if this applies to other cell phones.

i got a call from this number (416) 343-7050 and ask me if i dialled 911
i told her no i didn't ....y are they calling me...i didnt dialed 911 and when i return called this number its disconnected right away..

Got the same call in the middle of the night, now I live 4 hrs away from Toronto, in the 519 area. I checked my call log and I didn't call 911.  I'm a little confused (another way of saying 'tech stupid') but if I had made that call wouldn't it go to my local police?  I would hate to think that if I was really in trouble a police dispatch 4 hrs away would take the call.