The fastest way to block a number on iPhone
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". That's it — the number is blocked when ready. You can also block someone directly from a call by tapping "Decline" and then "Block this Caller" before you hang up.
If you want to block a contact instead of a number, open Contacts, select the person, tap "Block this Caller" at the bottom, and confirm. The person can still leave voicemails and send text messages, but you won't see notifications for either one — they go to a separate folder you can check later if you want to.
Blocked calls and texts don't ring your phone or light up your screen. The caller hears a message saying your number is unavailable, so they may think your phone is off or your number is disconnected. If they text you, the message arrives silently in a hidden folder.
Key Takeaways
- You can block a number from your recent calls list in seconds by tapping the info button and selecting "Block this Caller".
- Blocked callers hear that your number is unavailable, and their calls and texts arrive silently without notifications.
- You can unblock a number at any time by going to Settings > Phone > Blocked Contacts and swiping left on the name.
- Blocking someone on your phone does not prevent them from calling or texting — it only hides their messages from you.
- If you block a contact instead of just a number, you also block all their phone numbers, not just one.
Where to find your blocked contacts list
Go to Settings, tap Phone, then scroll down and tap "Blocked Contacts". You'll see everyone you've blocked on this device. The list shows names and numbers, and you can scroll through it to see who is currently blocked.
This list is specific to your iPhone — if you block someone on your phone, they are not blocked on your iPad, Mac, or any other device. Each device has its own blocked list. If you use iCloud and have turned on iCloud Keychain, your blocked contacts may sync across devices, but this depends on your settings.
How to unblock a number
Open Settings > Phone > Blocked Contacts, find the person or number you want to unblock, and swipe left on their name. Tap "Unblock" and confirm. The number is when ready unblocked and will ring your phone again if they call.
Once you unblock someone, they can call and text you normally. You'll see their calls in your recent list and their texts in your messages. There's no notification that you unblocked them — the person won't know unless you tell them.
Blocking someone from Messages or FaceTime
You can block a number directly from a text conversation. Open Messages, find the conversation, tap "Details" in the top right, scroll down, and tap "Block this Caller". You can also block someone from FaceTime the same way — open FaceTime, find the person, tap the info button, and select "Block this Caller".
When you block someone from Messages or FaceTime, they are blocked across all three apps — Phone, Messages, and FaceTime. The block applies to that contact or number everywhere on your iPhone.
What happens when you block someone
A blocked caller will hear a message saying your number is unavailable or that the call cannot be completed. They may think your phone is off, your number is disconnected, or you've changed carriers. They won't know they're blocked.
Text messages from blocked numbers still arrive on your iPhone, but they go to a separate folder and you don't get a notification. Open Messages, scroll to the top, and look for a "Filter Unknown Senders" option or a separate "Blocked" section to see them. Voicemails from blocked callers also arrive silently — you can find them in the Voicemail tab in the Phone app if you want to listen later.
Blocking is one-way. The blocked person can still see your contact information, call you (they'll just hear the unavailable message), and text you (the message will arrive silently). Blocking does not delete their contact from your phone or erase past conversations with them.
Using Do Not Disturb or Focus modes instead
If you want to silence calls and texts from someone without fully blocking them, you can use Focus modes. Go to Settings > Focus, create a new Focus (like "Work" or "Sleep"), and choose which contacts can reach you. Everyone else's calls and texts will be silenced, but they won't know you've muted them.
Do Not Disturb is simpler but less flexible — it silences all calls and texts except from your favorites. Focus modes let you choose specific people who can reach you and specific apps that can send notifications. You can set different Focus modes for different times of day or situations.
The difference between blocking and Focus modes: blocking is permanent until you unblock, while Focus modes are temporary and can turn on and off on a schedule. Blocked people hear the unavailable message, while people muted by Focus modes don't know their call was silenced.
Blocking spam and unknown numbers
If you get calls from numbers you don't recognize, you can block them the same way — tap the info button next to the number in Recents and select "Block this Caller". You can also report the call as spam or junk at the same time by tapping "Report as Junk" before you block.
Reporting spam helps Apple and your carrier identify patterns of unwanted calls. If many people report the same number, your carrier may block it automatically for everyone. You don't have to report a number to block it, but reporting makes it more likely that others won't get calls from that number either.
Some carriers also offer spam-filtering tools through their own apps. Verizon has Call Filter, AT&T has Call Protect, and T-Mobile has Scam Shield. These apps can block known spam numbers before they even ring your phone. Check your carrier's website to see what tools they offer.
Frequently Asked Questions
Can a blocked person see that I blocked them?
No. They'll hear a message saying your number is unavailable, which could mean your phone is off, you've changed numbers, or you've switched carriers. They won't get a notification that you blocked them, and there's no way for them to know for certain unless they try calling from a different number or ask someone else to call you.
If I block someone, can they still see my location or find me on social media?
Blocking on iPhone only affects calls, texts, and FaceTime. It does not change your privacy settings on social media, Maps, or Find My Friends. If you want to prevent someone from seeing your location, you need to change those settings separately in each app. Blocking someone's phone number does not hide you from them online.
What if I block someone by accident?
Go to Settings > Phone > Blocked Contacts, find their name, swipe left, and tap "Unblock". They'll be able to call and text you again when ready. There's no waiting period or confirmation needed beyond the unblock tap.
Do blocked text messages take up storage on my phone?
Yes. Blocked messages still arrive and sit in your Messages app, so they use storage space just like any other text. If you want to delete them, open Messages, find the conversation with the blocked person, swipe left, and tap "Delete". This removes the conversation but does not unblock the number.
If I block someone, will they know I read their old messages?
No. Blocking only affects new calls and texts going forward. Old message read receipts don't change, and the blocked person can't see whether you've read their messages after you block them. Read receipts are turned off by default in iPhone Messages anyway.