this person called me at 5 30 today, didnt leave a message, strange

Recieved a call from this number just before I was called by a Sask spam number.  If this keeps up I will change my number.

I keep getting called from (416) 555-7777 a couple of times a day, how can I stop this? There is no one on the other end.

There was no answer when i answered the phone.. i am not outting my name cause i dont want whoever is doing this to know it.. this is bs..

these people (sounded like there was more than one) called me and just said "hello" over and over again. i think i heard laughing in the background too... tried calling it back "the number you have called is no longer in service".all i wanna know is how the hell they got my cell phone number