The fastest way to block a contact
Open the Phone app, find the person's number in your recent calls or contacts, tap the info icon (the small circle with an "i"), scroll down, and tap Block this Caller. That person can no longer call, text, or FaceTime you. Their calls go straight to voicemail, and their messages land in a separate folder you can ignore.
If you're already in a text conversation, swipe left on their name in your Messages list, tap the three dots, then tap Block. For FaceTime, open the app, find their name in your recent calls, swipe left, and tap the block icon.
The block takes effect immediately. The person won't see a notification that they've been blocked, but they'll notice when calls go unanswered and messages don't deliver.
Key Takeaways
- Blocking someone on iPhone prevents them from calling, texting, or FaceTiming you, and their attempts go to a separate folder you don't see.
- You can block from the Phone app, Messages, FaceTime, or Contacts — each method takes about 10 seconds.
- A blocked person won't receive a notification that they're blocked, but they'll see that their calls and messages aren't going through.
- You can unblock someone at any time by going to Settings > Phone (or Messages or FaceTime) > Blocked Contacts and swiping left on their name.
Blocking from your Contacts app
Open Contacts, find the person, tap Edit in the top right, scroll to the bottom, and tap Block this Contact. This method is useful if you want to block someone you've saved but haven't recently called or texted.
You can also block a contact before you've ever communicated with them — for example, if someone gives you their number and you decide you don't want to hear from them. The block works the same way regardless of whether you've talked before.
What happens when you block someone
A blocked person's calls go straight to voicemail, but they won't hear a message saying the number is blocked. To them, it sounds like your phone is off or you're not answering. Their text messages don't reach you at all — they'll see the message was sent, but it won't deliver.
If they try to FaceTime you, they'll see the call ring on their end, but you won't see it come through. This creates the appearance that you're not available, without explicitly telling them they're blocked.
Blocked contacts can still see your profile picture, status, and other public information on iMessage or in shared apps. Blocking only stops direct communication — it doesn't hide you from them everywhere on your phone.
Blocking someone who's already texting you
If someone is already messaging you and you want to stop, open Messages, find the conversation, swipe left on their name, tap the three dots (more options), and select Block. Their previous messages stay in your Messages app, but new ones won't come through.
You can also report the conversation as spam or junk before blocking. Tap the three dots, then Report Junk. This sends information to Apple about the sender, which helps them identify patterns of spam or harassment across their network.
Blocking someone who's calling you repeatedly
If someone keeps calling and you want to stop the calls immediately, answer the call, then tap Block at the bottom of the screen. You can also block them from your recent calls list without answering — tap the info icon next to their name and select Block this Caller.
After you block them, their calls will still ring on their end for a few seconds before going to voicemail. This delay is normal and doesn't reveal that you've blocked them.
Unblocking someone if you change your mind
Go to Settings > Phone (or Messages or FaceTime, depending on where you blocked them), scroll down to Blocked Contacts, and swipe left on the person's name. Tap Unblock. They can now call, text, or FaceTime you again.
Unblocking doesn't notify the person — they won't know you've unblocked them. If they try to reach you after you've unblocked them, their message or call will come through normally.
Blocking across multiple apps
Blocking someone in the Phone app doesn't automatically block them in Messages or FaceTime. If you want to block someone completely, you may need to block them in each app separately. For example, you could block their number from calling you but still receive their text messages unless you block them in Messages too.
This separation exists because each app handles communication differently. A phone number blocks calls and voicemail, but an iMessage address (which can be a phone number or an email) is separate. If someone has both, blocking one doesn't block the other.
Frequently Asked Questions
Can someone tell if I've blocked them?
They won't get a notification, but they'll figure it out after a few attempts. Their calls will go straight to voicemail, their texts won't show as delivered, and FaceTime calls will ring but never connect. After a few tries, most people will realize they're blocked.
Will a blocked person see my last message or my profile picture?
They can still see your profile picture and any messages you sent before blocking them. Blocking stops new communication, not old conversations. If you want to remove a conversation entirely, you can delete the chat thread separately.
What if someone blocks me — will I know?
You won't get a notification, but you'll notice the same signs: calls go to voicemail, texts don't deliver, and FaceTime calls don't connect. There's no way to confirm for certain that you're blocked versus the person just not answering, but the pattern usually makes it clear.
Can I block someone without them knowing my phone number?
If you have their contact information but they don't have yours, you can block them from your Contacts app. They won't know you've blocked them because they've never tried to reach you. The block only matters if they attempt to contact you later.
Does blocking someone delete our conversation history?
No. Your text messages, call history, and FaceTime records stay in your phone. Blocking only stops new communication. If you want to remove the conversation, you have to delete it separately by swiping left on the chat and tapping delete.