The fastest way to block a number on iPhone

You can block a caller directly from your Phone app in about ten seconds. Open the Phone app, go to Recents, find the number or contact you want to block, tap the circle with an i next to it, scroll down, and tap Block this Caller. Confirm by tapping Block Contact. That number can no longer call or text you, and their calls go straight to voicemail without your phone ringing.

If you want to block someone mid-call, press the red End Call button to hang up, then when ready tap the circle with an i that appears on the call screen. You will see the Block option right there. This works the same way as blocking from Recents.

Once you block a number, you will not see notifications when they call or text. Their messages go to a separate folder you can check later if you need to, but your phone stays silent.

Key Takeaways

  • Blocked callers cannot reach you by phone or text — their calls go straight to voicemail without ringing your phone.
  • You can block a number from your Recents list, from an active call, or by opening a contact and scrolling to the Block option.
  • Messages from blocked numbers appear in a separate folder in the Messages app, so you can review them later if needed.
  • You can unblock a number at any time by going to Settings, Phone, Blocked Contacts and tapping Edit, then the minus sign next to the number.
  • Blocking someone on your iPhone does not prevent them from seeing your location, accessing your photos, or viewing your social media — it only stops calls and texts.

Blocking a contact you already have saved

If the person is already in your Contacts app, you can block them from their contact card. Open Contacts, find the person, tap Edit in the top right corner, scroll all the way to the bottom, and tap Block this Caller. Confirm the block.

This method is useful if you want to block someone you know by name rather than hunting through your call history. It also keeps the contact card itself in your phone — blocking does not delete the contact, it just prevents them from reaching you.

Blocking unknown or spam numbers from your call history

Unknown numbers and spam calls often appear in your Recents list. Tap the circle with an i next to any number you do not recognize, scroll down, and tap Block this Caller. You do not need to know who the number belongs to.

If you missed a call and only see the number on your lock screen or in Recents, you can still block it the same way. The number does not have to be in your contacts.

Finding and unblocking a number you blocked by mistake

Blocked numbers are stored in your Settings app, not in your Phone or Contacts app. Open Settings, tap Phone, then tap Blocked Contacts. You will see a list of every number and contact you have blocked.

To unblock someone, tap Edit in the top right corner, then tap the red minus sign next to their name or number. Tap Delete to confirm. Once you unblock them, they can call and text you again, and you will hear your phone ring.

There is no way to see who you blocked without going into Settings, so if you are not sure whether you blocked someone, check this list first.

What happens when you block someone

When you block a caller on iPhone, their calls go directly to your voicemail. Your phone does not ring, you do not get a notification, and you will not see a missed call alert. To you, it is as if they never called.

Text messages from blocked numbers still arrive, but they go into a separate conversation thread that you have to look for. Open Messages, scroll down past your normal conversations, and you will find a thread labeled with the blocked number. You can read old messages there, but you will not get notifications when new ones arrive.

Blocking is one-way. The blocked person does not get a message saying they are blocked. Their calls and texts straightforward fail to reach you, and they may assume your phone is off, you are ignoring them, or there is a network problem.

Blocking calls from unknown or private numbers

If you are getting calls from numbers that show up as Unknown, Private, or Restricted, you cannot block them individually because there is no number to block. Instead, go to Settings, Phone, and turn on Silence Unknown Callers. This sends any call from a number not in your contacts straight to voicemail.

Be careful with this setting if you are expecting calls from businesses, doctors, or services that may call from unfamiliar numbers. When Silence Unknown Callers is on, those calls will not ring your phone either.

If you want to block calls from a specific company or service that keeps calling from different numbers, you may need to use a third-party call-blocking app from the App Store. iPhone's built-in blocking works best for individual numbers you have already received calls from.

Blocking in Messages or FaceTime

You can also block someone from the Messages app. Open a conversation with the person, tap their name or number at the top of the thread, tap Info, scroll down, and tap Block this Caller. This blocks them from calling, texting, and FaceTiming you all at once.

The same option appears in FaceTime. If someone calls you on FaceTime and you want to block them, tap the circle with an i on the call screen and select Block this Caller. They will be blocked from calling you by phone, text, and FaceTime.

Frequently Asked Questions

Can a blocked caller tell they have been blocked?

No. A blocked caller will not receive a notification or message saying they are blocked. Their calls go to voicemail and their texts fail to send, but they may think your phone is off, you are busy, or there is a network issue. Some people figure it out after repeated failed attempts, but iPhone does not tell them directly.

Will blocking someone stop them from seeing my location or my social media?

No. Blocking on iPhone only stops calls and text messages. It does not prevent someone from viewing your public social media profiles, seeing your location if you share it through other apps, or accessing photos you have shared elsewhere. If you need to prevent someone from seeing your location, turn off location sharing in the Maps or Find My app separately.

What if someone keeps calling from different numbers?

Block each number individually as it comes in, or turn on Silence Unknown Callers in Settings to send unfamiliar numbers straight to voicemail. If the calls are harassing or threatening, contact your phone carrier or local police. Some carriers offer additional spam-blocking tools beyond what iPhone provides.

Can I block a number before they call me?

You can block a contact you already have saved in your phone by opening their card and tapping Block this Caller. However, you cannot block a number you have never received a call or message from. You can only block numbers after they contact you first.

If I block someone and then unblock them, will they see old messages?

Yes. Unblocking does not delete any messages. When you unblock someone, they can see the entire conversation history with you, including messages sent before you blocked them. If you want to delete a conversation, you have to do that separately by swiping left on the thread and tapping Delete.