Block a number directly from a text conversation

The fastest way to block someone is to open the conversation with that person in Messages, tap their name at the top of the thread, then tap Block this Caller. iPhone will ask you to confirm — tap Block Contact and the number is blocked when ready.

Once blocked, that person cannot send you text messages, iMessages, or FaceTime calls. Any messages they send will not arrive on your phone, and they will not see a "delivered" status on their end — the message will straightforward fail to send. If you change your mind later, you can unblock them the same way by tapping Unblock this Caller.

This method works whether the person is in your contacts or not. If they are not saved as a contact, their phone number will still appear at the top of the conversation thread, and you can still tap it to find the block option.

Key Takeaways

  • You can block a number directly from any text conversation by tapping the sender's name and selecting Block this Caller.
  • Blocked numbers cannot send you texts, iMessages, or FaceTime calls, and their messages will not arrive on your phone.
  • You can also block numbers through the Settings app under Messages, or by blocking a contact in your Contacts list.
  • Blocking someone does not delete past messages — those remain in your conversation history unless you delete them manually.
  • If you block someone by accident, you can unblock them at any time using the same method you used to block them.

Block a number through the Settings app

If you want to block a number without opening a conversation, go to Settings > Messages > Blocked Contacts. Tap Add New and select the contact or type the phone number you want to block. The number is blocked as soon as you confirm.

This route is useful if someone has been texting you repeatedly and you have not saved their number. You can type their phone number directly without needing to find an old message from them. The blocked number will not be able to reach you through any Apple service — Messages, FaceTime, or iCloud.

Block someone from your Contacts list

Open the Contacts app, find the person you want to block, and tap Edit in the top right corner. Scroll to the bottom of their contact card and tap Block this Contact. Confirm when iPhone asks you to verify.

Blocking through Contacts is helpful if you want to block someone you know well but no longer want to hear from. Their contact card stays in your phone — you can unblock them later if needed — but they cannot reach you by text, call, or FaceTime.

What happens after you block someone

When you block a number, that person's messages do not arrive on your phone at all. They will not see a notification that they are blocked. Instead, their text will appear to send normally on their end, but it will fail silently — they may eventually notice that you never respond, or they may see a delivery failure after several minutes.

Your old messages with that person stay in your Messages app unless you delete the conversation manually. Blocking only stops future messages; it does not erase your history. If you want to remove the conversation entirely, swipe left on it in the Messages list and tap Delete.

If the blocked person calls you, the call will go straight to voicemail. They can leave a message, but you will not see a notification for it — their voicemail will appear in a separate section of the Phone app labeled Blocked Messages.

Unblock a number if you change your mind

Go to Settings > Messages > Blocked Contacts and swipe left on the number you want to unblock. Tap Unblock. That person can now text and call you again.

You can also unblock someone by opening a conversation with them and tapping their name at the top, then selecting Unblock this Caller. Either method works — use whichever is faster for you.

Block spam and unknown numbers

If you are getting repeated texts from numbers you do not recognize, you can block them one at a time using the methods above. For broader protection, go to Settings > Messages and turn on Filter Unknown Senders. This separates texts from people not in your contacts into a different tab, so they do not clutter your main conversation list.

You can also report a message as spam or junk before blocking it. In the Messages app, swipe left on the conversation and tap the three dots, then select Report Junk. This tells Apple the number is sending spam, which helps protect other users.

Blocking does not work across all apps

Blocking a number in Messages stops texts and iMessages, but it does not block someone from reaching you through other apps like WhatsApp, Telegram, or Instagram. If someone is harassing you through multiple platforms, you will need to block them separately in each app.

Similarly, blocking a contact in your Contacts app blocks them from calling and texting through Apple services, but third-party messaging apps have their own block features. Check the settings of each app you use to see where the block option is located.

Frequently Asked Questions

Can someone tell if I blocked them?

Not directly — iPhone does not send a notification when you block someone. However, they may figure it out if their messages stop delivering, or if they notice you are active on social media but never respond to their texts. There is no way for them to see a "blocked" status on their phone.

Will blocked messages still take up storage on my phone?

No. Once you block a number, their messages do not arrive on your phone at all, so they use no storage. If you had messages from them before blocking, those old messages stay in your conversation history and do count toward storage unless you delete the conversation.

What if someone blocks me — will I know?

You will not get a notification, but you may notice that your messages to them do not show a "delivered" status, or that they take much longer than usual to send. Calls may go straight to voicemail. The only way to be certain is to ask them directly.

Can I block a number that is not in my contacts?

Yes. You can block any phone number, even if it is not saved in your Contacts. Open the conversation with that number in Messages, tap their number at the top, and select Block this Caller. You can also type the number directly into Settings > Messages > Blocked Contacts.

If I delete a conversation, does that unblock the person?

No. Deleting a conversation and blocking are separate actions. If you block someone and then delete the conversation, they remain blocked. You have to unblock them manually through Settings or by opening a new message from them and tapping Unblock.