Blocking stops calls, texts, and FaceTime from one person

When you block a contact on an iPhone, that person cannot call you, text you, or reach you through FaceTime. Their calls go straight to voicemail as if your phone is off. Their text messages do not arrive at all. They will not see a notification that they are blocked — the message straightforward fails to send on their end, usually after a delay.

You can block someone in under 30 seconds from your Contacts app, your Phone app, or your Messages app. The block applies across all communication methods at once. You can unblock them just as quickly if you change your mind.

Key Takeaways

  • Blocking a contact stops calls, texts, and FaceTime from reaching you, and the person does not receive a notification that they are blocked.
  • You can block someone from your Contacts app by opening their card, scrolling to the bottom, and tapping "Block this Caller."
  • If someone texts or calls you first, you can block them directly from the message or call screen without opening Contacts.
  • Blocked contacts can still see your profile picture and status on iMessage, but their messages will not deliver and they cannot reach you by phone or FaceTime.
  • You can unblock someone at any time by going to Settings > Phone > Blocked Contacts and swiping left on their name.

Block someone from your Contacts app

Open the Contacts app on your home screen. Find the person you want to block by scrolling or by typing their name in the search box at the top.

Tap their name to open their contact card. Scroll all the way to the bottom of the card. You will see a red button that says "Block this Caller." Tap it. A popup will ask you to confirm — tap "Block Contact" again. That person is now blocked.

Block someone who just texted or called you

If someone texts you and you want to block them when ready, open the Messages app and find their conversation. Swipe left on their name (or tap and hold on it). A menu will appear with options including "Block." Tap it and confirm.

If someone calls you, you can block them the same way from the Phone app. Open Phone, go to the Recents tab, find their name, swipe left, and tap "Block this Caller."

What a blocked person can and cannot do

A blocked contact cannot call you — their calls go to voicemail. They cannot send you text messages or iMessages. They cannot start a FaceTime call with you. If they try to send a message, it will eventually fail to send on their end, usually after several minutes, and they may see an error.

One thing that surprises people: a blocked contact can still see your profile picture and your status on iMessage. They can still see that you were last active at a certain time if you have that setting turned on. They straightforward cannot reach you. If they know your number or have your contact information another way, they can still try to contact you, but the attempt will not go through.

Unblock someone you blocked by mistake

Go to Settings on your home screen. Tap Phone (or Messages if you want to unblock them from text only). Scroll down and tap "Blocked Contacts." You will see a list of everyone you have blocked.

Find the person you want to unblock and tap their name. A button will appear that says "Unblock." Tap it. They are now unblocked and can reach you again by phone, text, or FaceTime.

Block someone on iMessage only

If you want to block someone from texting you but still allow them to call, you can block them in Messages without blocking them in Phone. Open Messages, find their conversation, swipe left on their name, and tap "Block." This blocks only iMessage and text messages, not calls or FaceTime.

To block them from calls too, you would need to go to Phone > Recents, find their name, and block them there as well. Most people block across all methods at once, but the option exists to be more selective if you need to.

What happens to old messages from a blocked contact

Messages that arrived before you blocked someone stay in your conversation thread. You can still read them. New messages from that person will not arrive. If you unblock them later, any messages they sent while blocked will not suddenly appear — those messages were never delivered.

If you want to delete the entire conversation with someone you have blocked, swipe left on their name in Messages and tap "Delete." This removes the thread but does not affect the block itself.

Frequently Asked Questions

Can a blocked person tell they are blocked?

Not directly. Their calls go to voicemail and their texts fail to send, but they do not receive a message saying "you are blocked." They may suspect it if calls always go to voicemail and texts never deliver, but they cannot know for certain.

What if I block someone and they call from a different number?

Blocking applies only to that specific phone number or contact. If they call from a different number, you will see the call come through. You would need to block each number separately. If someone is harassing you from multiple numbers, contact your carrier or local police.

Can I block someone without them knowing my number?

Yes. You can block a contact even if you have never called them or they have never called you. You can also block someone from a conversation thread without ever saving them as a contact. The block works the same way regardless.

Does blocking someone delete their contact from my phone?

No. Blocking and deleting are separate actions. When you block someone, their contact card stays in your Contacts app. You can unblock them anytime. If you want to remove their contact entirely, you need to delete it separately by opening their card and tapping "Delete Contact."

If I block someone on iPhone, are they blocked on my iPad too?

Yes, if you use the same Apple ID on both devices. Blocks sync across all your Apple devices. If you block someone on your iPhone, they are automatically blocked on your iPad and Mac as well.