The fastest way to block a number on iPhone

Open the Phone app, go to Recents, find the number you want to block, tap the circle with an i next to it, scroll down, and tap Block this Caller. That number will no longer reach you — calls go straight to voicemail and you won't see notifications.

If you're already in a call with someone you want to block, tap the red end-call button, then when ready tap the number that appears at the top of the screen. The block option will be there. You can also block a number from your contacts app by opening the contact, tapping Edit, scrolling to the bottom, and selecting Block this Caller.

Once you block a number, the person can still leave voicemails, but you won't hear a notification. Their texts won't come through at all — they'll disappear before they reach your phone. If you change your mind, go to Settings > Phone > Blocked Contacts and tap Edit, then the red minus sign next to any number you want to unblock.

Key Takeaways

  • You can block a number directly from your Recents list in the Phone app by tapping the info circle and selecting Block this Caller.
  • Blocked callers can still leave voicemails, but you won't receive call notifications or see their text messages.
  • You can unblock a number anytime through Settings > Phone > Blocked Contacts.
  • Blocking works the same way whether the number is saved in your contacts or is unknown.
  • If someone calls from a different number after being blocked, that new number will reach you unless you block it separately.

Blocking from a text message or email

If you want to block someone who texted you, open the Messages app, find the conversation, swipe left on it, tap the trash icon, then tap Delete. That removes the conversation but doesn't block the number. Instead, open the message thread itself, tap the contact name or number at the top, tap the info circle, scroll down, and tap Block this Caller.

For FaceTime calls, open the FaceTime app, find the call in your history, swipe left, and tap the trash icon. Then tap the number or contact name, tap the info circle, and select Block this Caller. The process is identical to blocking a phone number — once blocked, that person cannot reach you through FaceTime, calls, texts, or iMessage.

What happens when you block a number

A blocked caller will hear the phone ring once or twice, then get a message that your voicemail is full or unavailable — they won't know they've been blocked. Their calls go directly to voicemail without your phone ringing. If they text you, the message sends normally from their end, but it never arrives on your device.

The blocked person can still see your contact information and call you, but they won't reach you. They may not realize they're blocked if they don't try to contact you frequently. If they call from a different phone number, you will receive that call because you're blocking the specific number, not the person.

Blocking unknown or spam numbers

If a number isn't in your contacts, you can still block it. Go to Recents in the Phone app, tap the circle with an i next to the unknown number, and tap Block this Caller. You don't need to save the number first.

For repeated spam or robocalls, consider enabling Filter Unknown Senders in Settings > Messages. This sends texts from people not in your contacts to a separate tab. You can also turn on Silence Unknown Callers in Settings > Phone, which sends calls from unknown numbers directly to voicemail while still ringing for contacts you know.

Managing your blocked contacts list

To see everyone you've blocked, go to Settings > Phone > Blocked Contacts. This list shows every number you've blocked through the Phone app, Messages, or FaceTime. The list is organized by most recent blocks first.

To unblock someone, tap Edit in the top right corner, then tap the red minus sign next to their number. Tap Unblock to confirm. Once unblocked, that person can call, text, and reach you through FaceTime again. You can also unblock by swiping left on a blocked contact and tapping Unblock.

Blocking contacts across your Apple devices

If you use multiple Apple devices — an iPad, Mac, or Apple Watch — blocks sync across all of them through iCloud. When you block a number on your iPhone, it's automatically blocked on your other devices. This means a blocked caller won't reach you on your iPad or Mac either.

This syncing happens automatically if you're signed into the same Apple ID on all devices. You can manage your blocked list from any device, and changes appear everywhere within a few minutes. If you unblock someone on your iPhone, they're unblocked on your iPad and Mac at the same time.

Frequently Asked Questions

Can a blocked person tell they've been blocked?

Not directly. They'll hear the phone ring once or twice before reaching voicemail, which is the same experience as calling someone who doesn't answer. They won't receive a message saying they're blocked. However, if they text you repeatedly and never get a response, they may suspect it.

What if someone calls me from a different number after I block them?

You'll receive the call because you blocked a specific number, not the person. You'll need to block each new number separately. If someone is harassing you from multiple numbers, consider enabling Silence Unknown Callers in Settings > Phone to send unfamiliar numbers to voicemail automatically.

Can I block a number without saving it to my contacts?

Yes. Go to Recents in the Phone app, tap the info circle next to the unknown number, and tap Block this Caller. You don't need to create a contact first. The number will be added to your blocked list when ready.

Will a blocked person see my voicemail greeting?

Yes. When a blocked caller reaches your voicemail, they hear your greeting and can leave a message. You won't be notified of the voicemail, but it will be stored in your voicemail inbox. You can listen to it anytime by opening the Phone app and tapping Voicemail.

How do I block calls from a specific contact but still receive their texts?

iPhone doesn't offer this option. When you block a number, it blocks calls, texts, FaceTime, and iMessage all at once. If you want to receive texts from someone but not calls, you'll need to unblock them and instead use Do Not Disturb or silence their notifications in the Contacts app.