The fastest way to block someone on iPhone

Open the Messages app, find the conversation from the person you want to block, swipe left on their name, and tap the trash icon to delete the conversation. Then open Settings, scroll to Messages, tap Filter Unknown Senders if you want to separate texts from people not in your contacts, and return to the main Settings screen. Tap Blocked Contacts, then Add, and search for the person's name or phone number. Tap their name and confirm. That person can no longer text you, call you, or reach you through FaceTime.

If you want to block someone without deleting the conversation first, you can also open their contact card directly: tap Contacts, find their name, tap Edit in the top right, scroll to the bottom, and tap Block This Caller. The conversation stays in your Messages app but you will not receive new messages from them.

Key Takeaways

  • Blocking someone on iPhone prevents them from texting, calling, and reaching you on FaceTime all at once — you do not need to block each service separately.
  • You can block a contact through Settings > Blocked Contacts, or by opening their contact card and tapping Block This Caller.
  • Blocked people cannot see that they are blocked; their messages straightforward fail to send, and calls go straight to voicemail.
  • You can unblock someone at any time by going to Settings > Blocked Contacts, swiping left on their name, and tapping Unblock.
  • Blocking someone does not delete past conversations — those messages stay in your app unless you delete them separately.

Blocking through the Messages app directly

The quickest route if you are already reading a conversation is to swipe left on the person's name in your message thread. A red trash icon appears on the right side. Tap it to delete the conversation, then go to Settings > Blocked Contacts > Add and search for their name. This method works whether you have their number saved as a contact or not.

If you want to keep the conversation visible but stop receiving new messages, do not delete it first. Instead, tap the person's name or number at the top of the conversation thread. This opens their contact card. Scroll down and tap Block This Caller, then confirm. The conversation remains in your Messages app, but new messages from them will not come through.

Blocking through Settings

Go to Settings on your home screen, scroll down and tap Messages, then scroll to the bottom and tap Blocked Contacts. Tap the Add button in the top right corner. A list of your contacts appears. Search for the person's name by typing it in the search box, or scroll through your contacts manually. Tap their name, and they are blocked when ready.

If the person is not in your contacts, tap Add in the top right of the Blocked Contacts screen, then tap Create New Contact at the bottom of the list. Enter their phone number or email address in the fields provided, then tap Save. They are now blocked. You can also block a number that texted you without saving it as a contact — just enter the number directly in the Create New Contact screen.

What happens when you block someone

When you block a person on iPhone, they cannot text you, call you, or reach you through FaceTime. Their messages fail to send with a red exclamation mark on their end, and calls go directly to voicemail. They do not receive a notification that they are blocked — it straightforward appears to them that their messages are not going through.

Past conversations with that person stay in your Messages app unless you delete them. Blocking only stops new messages and calls from coming in. If you want to remove the conversation entirely, swipe left on it in your Messages list and tap Delete.

Unblocking someone later

If you change your mind, you can unblock someone at any time. Go to Settings, tap Messages, scroll to Blocked Contacts, find the person's name, swipe left on it, and tap Unblock. They can now text and call you again. Unblocking does not restore deleted conversations — if you deleted the thread before blocking, it stays deleted.

You can also unblock someone through their contact card. Open Contacts, find their name, tap Edit, scroll to the bottom, and tap Unblock This Caller. The result is the same either way.

Blocking unknown numbers and spam

If you want to separate texts from people not in your contacts into a different folder, go to Settings, tap Messages, and toggle on Filter Unknown Senders. Messages from people whose numbers are not saved will appear in a separate tab labeled Unknown Senders. This does not block them — they can still reach you — but it keeps their messages out of your main inbox.

To actually block spam calls and unknown numbers, you need to block them individually as they come in. When a call comes from an unknown number, tap the red decline button, then tap the information icon (i) that appears. Tap Block This Caller at the bottom. For texts from unknown numbers, open the message, tap the person's number or email at the top, tap Block This Caller, and confirm.

Blocking through iCloud and other Apple services

Blocking on your iPhone syncs across your other Apple devices if you use the same iCloud account. If you block someone on your iPhone, they are also blocked on your iPad and Mac. This means they cannot reach you through Messages, FaceTime, or calls on any of those devices.

If you use multiple phone numbers or email addresses on your iPhone, blocking applies to all of them. A blocked person cannot reach you through any of your contact methods. If you want to block them on only one number or email, you would need to use a different Apple ID on a different device, which is not practical for most people.

Frequently Asked Questions

Can someone tell if I blocked them?

No. When you block someone, their calls go to voicemail and their messages fail to send with a red exclamation mark on their end. They do not receive a notification that they are blocked. It straightforward looks to them like their messages are not going through.

If I block someone, can I still see our old messages?

Yes, unless you delete the conversation. Blocking only stops new messages from coming in. Past conversations stay in your Messages app. If you want to remove them, swipe left on the conversation and tap Delete.

What if I block someone by accident?

Go to Settings, tap Messages, tap Blocked Contacts, find their name, swipe left, and tap Unblock. They can text and call you again when ready. If you deleted the conversation before blocking, you will need to start a new conversation with them.

Can I block someone from calling but still receive their texts?

No. Blocking on iPhone blocks all communication — texts, calls, and FaceTime. You cannot block calls only. If you want to silence notifications from someone but still receive their messages, you can mute the conversation instead by swiping left on it and tapping Mute.

Do I need to block someone on each Apple service separately?

No. Blocking on iPhone blocks them from Messages, FaceTime, and calls all at once. You do not need to block them separately in each app. If you use multiple Apple devices with the same iCloud account, the block syncs across all of them.