You can block a text sender directly in the Messages app or in Settings

iPhone gives you two straightforward ways to stop receiving texts from a specific number or contact. The fastest method is to open the conversation in Messages, tap the sender's name at the top, and choose "Block this Caller." If you want to block someone before they text you, or if you need to manage a list of blocked numbers, you can do that in Settings under Phone > Blocked Contacts. Either way, blocked senders won't be able to reach you by text, and their messages won't appear in your inbox.

Once you block someone, their texts go nowhere — they don't sit in a folder you can see later, and the sender gets no notification that they've been blocked. If you change your mind, you can unblock them the same way you blocked them, and texts will flow normally again.

Key Takeaways

  • The quickest way to block a texter is to open their conversation in Messages, tap their name at the top, scroll down, and tap "Block this Caller."
  • You can also block numbers through Settings by going to Phone > Blocked Contacts > Block Contact, or by opening Contacts and blocking from there.
  • Blocked messages disappear entirely — they don't go to spam or a separate folder, and the sender won't know they're blocked.
  • Unblocking works the same way: find the contact, tap their name, and choose "Unblock this Caller" or remove them from your blocked list in Settings.

Blocking someone from an active text conversation

If someone is already texting you and you want to stop, this is the fastest route. Open the Messages app, find the conversation, and tap the sender's name or number at the very top of the screen. A menu will appear with contact details and options.

Scroll down until you see "Block this Caller" in red text, and tap it. A confirmation popup will ask if you're sure — tap "Block Contact" to confirm. That's it. Any future texts from that number will be blocked immediately.

Blocking a number before they text you

If you know a number you want to block but haven't received a text from them yet, use Settings instead. Open Settings, tap Phone, then tap Blocked Contacts. At the top right, tap "Add" (the plus sign), and your Contacts list will appear. Find the person you want to block and tap their name. They'll move to your blocked list right away.

You can also block directly from the Contacts app: open Contacts, find the person, tap "Edit" in the top right corner, scroll to the bottom, and tap "Block this Caller." This method is useful if you're already in Contacts and want to block without switching apps.

What happens when you block someone

When a number is blocked, text messages from that sender simply don't arrive on your phone. There's no spam folder, no archive, no way for you to see them later unless you unblock the contact. The blocked person won't receive a message saying they've been blocked — their text will just fail to send, or it may appear to send but you'll never receive it.

Blocked contacts also can't reach you by phone call or FaceTime. If they try to call, they'll hear a ring but the call won't come through to you. This makes blocking useful for stopping all contact from someone, not just texts.

Unblocking a contact

If you blocked someone and want to unblock them, the process is simple. Go to Settings > Phone > Blocked Contacts, find the person's name in the list, swipe left on their name, and tap "Unblock." Alternatively, open the Messages app, find a past conversation with that person (if one exists), tap their name at the top, and select "Unblock this Caller."

Once unblocked, texts from that person will come through normally again. You won't see any record of the messages they sent while they were blocked — those are gone permanently.

Blocking unknown or spam numbers

If you receive a text from a number not in your contacts, you can still block it. Open the conversation, tap the number at the top of the screen, and choose "Block this Caller." You don't need to know who the person is or have them saved as a contact.

For ongoing spam, consider enabling "Filter Unknown Senders" in Settings > Messages. This moves texts from people not in your contacts into a separate tab, keeping your main inbox cleaner. It's not the same as blocking — those messages still arrive, just in a different place — but it can reduce clutter if you get frequent spam texts.

Managing your full blocked list

To see everyone you've blocked, go to Settings > Phone > Blocked Contacts. This list shows all numbers and contacts you've blocked across calls, texts, and FaceTime. You can unblock anyone from this screen by swiping left and tapping "Unblock," or by tapping "Edit" in the top left and then the minus sign next to a name.

There's no limit to how many people you can block, so don't worry about running out of space. Your blocked list is private and won't be shared with anyone else, even if you sync your iPhone with iCloud.

Frequently Asked Questions

Can someone tell if I blocked them?

No. When a blocked person tries to text you, the message will fail to send or appear to send but won't reach you. They won't receive a notification that you blocked them. The only way they'd know is if they tried to call and noticed the behavior was different, but there's no official "you've been blocked" message.

What if I block someone but they text from a different number?

Blocking only affects the specific number you blocked. If someone texts you from a different phone or a texting app, that message will come through normally. You'd need to block each number separately. If someone is harassing you across multiple numbers, consider reporting it to your carrier or local authorities.

Do blocked messages take up storage space on my iPhone?

No. Blocked messages don't arrive on your phone at all, so they don't use storage. Once you block someone, their incoming texts are rejected before they reach your device.

Can I block someone and still see old messages from them?

Yes. Blocking stops future messages, but it doesn't delete past conversations. If you had a text thread with someone before blocking them, that conversation stays in your Messages app. You can still read old messages, but new ones from that contact won't arrive.

If I unblock someone, will I see the messages they sent while blocked?

No. Messages sent while someone was blocked are permanently deleted and won't reappear when you unblock them. Unblocking only allows future messages to come through.