Can an iphone block numbers without me knowing?

I just looked through my message settings on my phone and noticed I had phone numbers that were under the tab "blocked" but I know I didn't put them there. Why/how were these numbers blocked?

I have known that to be the case. What happens with lots of people is that you have clicked them by accident. You can easily unblock the number. Sometimes if a phone detects bad behaviour or dangerous content, if so it stops it being able to contact you!

  • Using MyVerizon to block numbers on iPhone 4S? On the MyVerizon site there's a feature that allows me to block up to 5 numbers at a time for 90 days and I used it to block a number on my iPhone 4s, but am still getting messages from this person! Does this feature only block calls and not texts? Or is it something to do with my particular phone? Please help, this person is driving me insane and I need to shut them out before I go crazy!
  • On iPhones can you block numbers from calling you and if that s yes how? One of my old friends who I hate now is constantly calling me and it's super annoying and I hate her. Can someone tell me how to block her from calling from my iPhone or something?
  • Is there any way an iPhone can be unlocked without knowing the passcode? My principal took my phone and demanded that I write down the passcode for it. I refused. So he said "Well, I'll keep your phone, and I'll call your mother and me and her can go through it together." I don't think he has a right to go through my phone anyway. But, does he mean that he is planning on cracking the code or something? Can he do that? Is it possible? btw, the passcode is pretty complicated, letters and numbers, i don't think it could be guessed.
  • Is there an app where you can read people's text messages without them knowing? I want an app on the iPhone 5 where you can read other people's text messages without them knowing or even being with them, help