The three ways to block a caller on iPhone

You can block a phone number on iPhone in three ways: through the Phone app during or after a call, through your Contacts app, or through your Settings. The Phone app method is fastest if you're already on a call or looking at a recent call log. The Contacts method works best if you have the person saved. Settings is useful if you want to block an unknown number or manage your full block list in one place.

All three methods send future calls and text messages from that number to your voicemail without ringing your phone. The blocked caller won't know they're blocked — they'll just hear a normal ring tone on their end while your phone stays silent.

Key Takeaways

  • You can block a number directly from a call, from your Contacts app, or from Settings, and the method you choose depends on whether you have the number saved.
  • Blocked callers can still leave voicemails, which you can listen to or delete without being notified.
  • You can view your complete block list in Settings under Phone, and unblock numbers at any time.
  • Blocking works for both phone calls and text messages from the same number.
  • If someone calls from a different number, they won't be blocked — blocking only affects the specific number you selected.

Blocking a number from the Phone app

Open the Phone app and go to the Recents tab at the bottom. Find the number or contact you want to block, swipe left on it, and tap the red circle with a line through it (the block icon). A menu will appear asking you to confirm — tap "Block this Caller" and you're done.

If you're currently on a call with someone you want to block, tap the red "End" button to hang up first, then follow the same steps in Recents. You can also block a number while a call is coming in by tapping the "Decline" button, but this only declines that single call — you'll need to use Recents to block the number permanently.

Blocking a contact you have saved

Open your Contacts app and find the person's name. Tap their contact card to open it, then scroll to the bottom and tap "Block this Caller." Confirm by tapping "Block Contact" in the popup menu.

This method is useful if the person is already in your contacts but you've decided you don't want to hear from them. If you later change your mind, you can return to their contact card and tap "Unblock this Caller" at the bottom.

Blocking through Settings

Open Settings and go to Phone. Scroll down and tap "Blocked Contacts." Tap the plus sign (+) in the top right corner, and your Contacts list will appear. Select the person you want to block, and they'll be added to your blocked list immediately.

This method requires you to have the person saved in your contacts. If you want to block an unknown number that isn't in your contacts, you'll need to use the Phone app method instead.

Viewing and managing your blocked list

To see everyone you've blocked, go to Settings > Phone > Blocked Contacts. This list shows all the numbers and contacts you've blocked. To unblock someone, swipe left on their name and tap "Unblock," or tap "Edit" in the top left and then tap the red minus sign next to their name.

There's no limit to how many people you can block on an iPhone. You can block and unblock numbers as many times as you want, and the changes take effect immediately.

What happens when you block a number

When you block a number, calls from that number go straight to voicemail without your phone ringing or showing a notification. Text messages from blocked numbers also go to a separate thread in your Messages app, and you won't be notified when they arrive. You can still see and read these messages if you look for them, but they won't interrupt you.

Blocked callers can still leave voicemails, but you won't receive a notification that they did. If you want to listen to their voicemail, you can go to the Voicemail tab in the Phone app and find it there. You can delete it without listening if you prefer.

Blocking unknown or private numbers

If you're getting calls from "Unknown" or "Private" numbers, you can't block them the same way because they don't have a specific number attached. Instead, go to Settings > Phone and toggle on "Silence Unknown Callers." This sends all calls from numbers not in your contacts, mail, or recent calls directly to voicemail.

Be aware that legitimate businesses and services you've never called before will also be silenced — they won't ring your phone. You can still see these calls in your Recents tab and call them back if needed. If you need to receive calls from unknown numbers, you can turn this setting off at any time.

Frequently Asked Questions

Can a blocked caller tell they've been blocked?

No. When someone you've blocked calls you, they hear a normal ring tone on their end, just as if you didn't answer. They have no way to know you've blocked them unless you tell them. Text messages to blocked numbers may eventually bounce back as undelivered, but this takes time and isn't immediate.

What if someone calls from a different number?

Blocking only affects the specific number you selected. If the person calls from another phone, that call will ring through normally. If you keep getting calls from different numbers, consider using "Silence Unknown Callers" instead, which blocks all numbers not in your contacts.

Can I block a number before they call me?

Yes. If you have their number saved in Contacts, open their contact card and tap "Block this Caller." You can also go to Settings > Phone > Blocked Contacts, tap the plus sign, and select them from your contacts list. They'll be blocked immediately, even if they've never called you.

Do blocked numbers still show up in my call history?

No. Once you block a number, it stops appearing in your Recents tab. If you unblock them later, their calls will start showing up in Recents again from that point forward, but their old call history won't reappear.

Can I block a number that's calling me right now?

You can decline the current call by tapping the red "End" button, but that only declines that one call. To permanently block the number, wait for the call to end, then go to your Recents tab, swipe left on the number, and tap the block icon.