How to block a number from texting and calling me on my iPhone 4?

Today I got 2 people that texted me today sending me rude pictures and text messages. They know who I'm since they called me by my name. I don't know who they are or how they got my number. Is there anyway to block their numbers from my phone or do I need to call my service provider?

Contract service provider.

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  • Is there any possible way to block a number from texting you on the iPhone? This guy I used to be friends with keeps texting me bad messages and it's creating problems with me and my boyfriend. Is there any way I can block this number from texting me? I have AT&T and I don't want to pay $4.99 a month for smart limits just to block one number. Is there an app or a feature on the iOS6?
  • Is it possible to block a number from calling and texting you? I have an iPhone 4S. I'm getting hassle from someone and I would like to block them from calling and texting me. I'm with Orange, I have called them and they said they are unable to block personal mobile numbers and could only suggest I change my number. I would rather not change my number. Any tricks or apps to block such a nummber?
  • If someone were to block my text now number would it block my normal number? I was teasing my girlfriend on my text now and she blocked me and I tired calling her and texting her on my normal number but she won't reply and it only run once and hung up. She has an iPhone, would it block my normal number if she blocked my text now number?
  • If I block other iPhone users from calling and texting me, will they know? I've got a 4S and was wondering if I blocked a couple people in my contacts with the same phones if they would know? What would happen if they called or texted me? Really need to know before I go ahead and do this, that way I don't get criticized for shunning them out of my life. I just can't deal with their annoying and ignorant texts anymore. Some friendships just don't last I guess and I'm too kindhearted to just tell them to downright quit texting me. Thoughts?