The fastest way to block a number on iPhone
Open the conversation with the person you want to block, tap the contact name or number at the top of the screen, scroll down, and tap Block this Caller. That's it — they won't be able to text you, call you, or reach you through FaceTime. Their messages won't appear in your inbox, and they won't know they're blocked (they'll just see their messages fail to send after a delay).
If you don't have an existing conversation with them, open Settings, go to Phone or Messages (depending on whether you want to block calls, texts, or both), tap Blocked Contacts, and select Add New. Then type or paste the number or contact name.
Blocked messages still take up server space on your carrier's end, but they won't clutter your phone or trigger notifications. You can unblock someone the same way — go to Settings, find Blocked Contacts, swipe left on the name, and tap Unblock.
Key Takeaways
- The quickest method is to open a text from someone and tap their name at the top, then select Block this Caller.
- Blocked contacts can't text, call, or FaceTime you, and their messages won't show notifications or appear in your inbox.
- You can block a number you've never texted by going to Settings > Phone or Messages > Blocked Contacts > Add New.
- Blocked people don't receive a notification that they're blocked, but their messages will eventually fail to send.
- You can unblock someone at any time through the same Blocked Contacts menu in Settings.
Blocking from the Messages app versus Settings
The Messages app method is faster if you already have a conversation open. Tap the contact name or number at the very top of the thread (not the message itself), and you'll see a small info screen with options including Block this Caller. This works for both phone numbers and iMessage addresses.
The Settings route is better if you want to block someone you've never texted, or if you're blocking multiple numbers at once. Go to Settings > Phone > Blocked Contacts > Add New, or Settings > Messages > Blocked Contacts > Add New. You can paste a number directly, which is useful if someone texts you from an unknown number and you want to block them before replying.
Both methods block the same way on your phone's end. The difference is just convenience — use whichever screen you're already on.
What happens when you block someone
When you block a contact, they can still send you texts and make calls, but you won't see or hear them. Their messages won't trigger notifications, won't appear in your inbox, and won't show up in your conversation list. If they call, it will go straight to voicemail without ringing your phone.
From their perspective, they'll see their message or call go through normally at first. But after a few minutes or hours, they may notice the message shows as "Delivered" but never "Read," or the call went to voicemail without the phone ringing. Some people figure out they're blocked; others assume your phone is off or you're ignoring them.
Blocked messages are stored on your carrier's servers, not on your phone, so they don't take up storage space on your device. However, you can't retrieve them later — once blocked, those messages are gone from your view permanently.
Blocking spam and unknown numbers
If you're getting texts from numbers you don't recognize, you have two options: block the specific number, or turn on Filter Unknown Senders to automatically separate texts from people not in your contacts into a separate tab.
To enable filtering, go to Settings > Messages and toggle on Filter Unknown Senders. This moves texts from unknown numbers into a separate "Unknown Senders" tab at the bottom of your Messages app, so they don't clutter your main inbox. You can still read them if you want, but they won't send notifications.
If a particular number keeps texting you, block it directly. If you're getting spam texts from many different numbers, filtering is more practical than blocking each one individually. You can also report spam to your carrier — in the Messages app, long-press a spam message and tap Report Junk, which sends the information to your carrier and Apple.
Blocking iMessage addresses and email
iMessage is Apple's texting service for iPhone, iPad, and Mac users. If someone texts you through iMessage (you'll see it in blue rather than green), you can block their iMessage address the same way you block a phone number — tap their name at the top of the conversation and select Block this Caller.
You can also block someone's email address if they're using it to send iMessages. Open Settings > Messages > Blocked Contacts > Add New, and type in their email address. They'll be blocked from texting you via iMessage, but they can still reach you by SMS (regular text) if they have your phone number.
If someone is harassing you across multiple platforms — iMessage, SMS, and calls — you'll need to block them in each place. Blocking their iMessage address doesn't block their phone number, and vice versa.
Blocking contacts in group chats
If someone in a group chat is bothering you, you can't block them from just that conversation — blocking removes them from your view entirely, across all chats and calls. However, you can mute the group conversation so you don't see notifications from it.
To mute a group chat, swipe left on the conversation in your Messages list and tap the speaker icon with a line through it. You'll still receive messages, but your phone won't alert you when new ones arrive. You can unmute it the same way.
If you want to remove someone from a group chat you created, open the conversation, tap the group name at the top, and look for options to remove members. If you didn't create the chat, you can't remove them — only the creator can do that.
Unblocking and managing your blocked list
To see everyone you've blocked, go to Settings > Phone > Blocked Contacts, or Settings > Messages > Blocked Contacts. The list shows all phone numbers and addresses you've blocked. If you want to unblock someone, swipe left on their name and tap Unblock.
Once you unblock someone, they can text and call you normally again. You won't receive their old blocked messages — those are permanently deleted. If they text you after you unblock them, you'll see new messages from that point forward.
There's no limit to how many people you can block on iPhone. Some people keep a blocked list organized by reason (spam, exes, work contacts they want to avoid), though iPhone doesn't let you add notes to blocked contacts. If you need to remember why you blocked someone, write it down separately.
Frequently Asked Questions
Can someone tell if I've blocked them?
Not officially — Apple doesn't send a notification when you block someone. However, they may figure it out if their messages consistently fail to send, their calls go straight to voicemail without ringing, or they notice you're active on social media but never respond to their texts. There's no foolproof way for them to know for certain.
What if I block someone by accident?
Go to Settings > Phone or Messages > Blocked Contacts, find their name, swipe left, and tap Unblock. They'll be able to reach you again immediately. You won't see their old blocked messages, but new ones will come through normally.
Do blocked messages use my data or storage?
Blocked messages are stored on your carrier's servers, not on your phone, so they don't take up your device storage. They also don't count against your data plan. You simply won't see them.
Can I block someone from calling but still receive their texts?
No — blocking on iPhone blocks both calls and texts from that contact. If you only want to silence calls, you can use Do Not Disturb or mute notifications instead, but that affects all contacts, not just one person.
What's the difference between blocking and muting a conversation?
Muting hides notifications from a conversation, but you can still see the messages if you open the chat. Blocking removes all messages from that contact from your view and prevents them from reaching you at all. Muting is for conversations you want to ignore; blocking is for people you don't want to hear from.