The fastest way to block a contact

Open the Phone app, find the contact you want to block, tap the "i" icon next to their name, scroll down, and tap Block this Caller. That's it — they can't call or text you anymore, and their calls go straight to voicemail without ringing your phone.

You can also block someone from Messages the same way: open a conversation with them, tap their name at the top, scroll down, and tap Block this Caller. Or block them from Contacts by opening their card, tapping the "i" icon, and selecting the block option.

Once you block someone, they won't see a notification that you blocked them. Their calls and texts simply fail to reach you, and they'll get a generic "message not delivered" error after a while.

Key Takeaways

  • You can block a contact from the Phone app, Messages app, or Contacts app by finding their name and tapping the block option in their details.
  • Blocked callers can't reach you by phone or text, and their calls go straight to voicemail without your phone ringing.
  • Blocked contacts won't know they're blocked — they'll just see that calls and messages fail to go through.
  • You can unblock someone at any time by going to Settings > Phone > Blocked Contacts and swiping left on their name.

Blocking someone from the Phone app

This is the most direct route if you have their number saved. Open the Phone app, go to the Recents tab, find the person you want to block, and swipe left on their name. A red Block button appears — tap it to confirm.

If you want to block them from your contacts instead, open the Contacts app, find their name, tap the "i" icon, scroll to the bottom, and tap Block this Caller. This method works whether or not you have their number saved.

Blocking someone from Messages

Open the Messages app and find the conversation with the person you want to block. Tap their name or number at the top of the screen to open their contact details, then scroll down and tap Block this Caller.

You can also long-press on the conversation in your message list, tap More (the three dots), and select Block from the menu. Either way, once you confirm, they can't send you messages anymore.

Blocking someone from FaceTime or other apps

If someone is bothering you through FaceTime, open a call or message from them, tap their name at the top, and scroll down to find Block this Caller. The same option appears in most Apple apps that handle calls or messages.

For third-party apps like WhatsApp, Instagram, or Telegram, the block option is usually in that app's settings, not in your iPhone's system settings. Open the app, find the person's profile or conversation, and look for a block or report option in their menu.

Viewing and managing your blocked list

To see everyone you've blocked, go to Settings > Phone > Blocked Contacts. This shows all the numbers and contacts you've blocked through the Phone app. You'll see a similar list under Settings > Messages > Blocked Contacts for people you've blocked through Messages.

To unblock someone, open the blocked list, find their name, and swipe left on it. A red Unblock button appears — tap it to remove them from your blocked list. They can then call or text you again.

Note that blocking someone in the Phone app doesn't automatically block them in Messages, and vice versa. If you want to block someone completely, you may need to block them in both places.

What happens when you block someone

When you block a contact, their calls go straight to voicemail without your phone ringing or showing a notification. They won't see a message saying they're blocked — instead, they'll hear the voicemail greeting and can leave a message if they want.

Text messages from a blocked contact won't appear in your Messages app at all. If they try to send you a message, it will eventually fail and they'll see a "message not delivered" error, but this can take a while.

Blocked contacts can still see your profile picture, status, and other public information on social media or in shared apps. Blocking only affects calls, texts, and FaceTime through your iPhone — it doesn't hide you from other services.

Blocking unknown or spam numbers

If you get a call from a number you don't recognize, you can block it without saving it as a contact. Open the Phone app, go to Recents, find the number, swipe left, and tap Block. You don't need their name or contact information.

For repeated spam calls, consider enabling Filter Unknown Senders in Settings > Messages. This sends texts from people not in your contacts to a separate folder. You can also turn on Silence Unknown Callers in Settings > Phone to send calls from unknown numbers straight to voicemail.

Frequently Asked Questions

Can someone tell if I blocked them?

No. Blocked callers won't receive a notification that you blocked them. Their calls go to voicemail and their texts eventually fail, but they won't see a message saying "you've been blocked." They may figure it out over time if all their attempts to reach you fail, but your iPhone won't tell them directly.

What if I block someone by accident?

Go to Settings > Phone > Blocked Contacts (or Settings > Messages > Blocked Contacts), find their name, swipe left, and tap Unblock. They can then call or text you again. You can unblock someone at any time.

Do I have to save someone as a contact to block them?

No. You can block a phone number or contact from your Recents list in the Phone app without saving them to your contacts. Just swipe left on their number in Recents and tap Block.

If I block someone in Messages, are they also blocked in Phone?

No. Blocking in Messages only blocks them in the Messages app. If you want to block them from calling you too, you need to block them separately in the Phone app or in your Contacts. It's easiest to block from Contacts, which blocks them across both apps.

Can a blocked person see my iMessage read receipts or typing indicators?

No. Once you block someone, they can't send you messages at all, so they won't see read receipts or typing indicators. Their messages won't reach your phone.