Block Unknown Senders and Filter Unknown Numbers

iPhone has a built-in filter that silences texts from people not in your contacts. Open Settings, tap Messages, then turn on Filter Unknown Senders. Unknown texts still arrive, but they go to a separate tab called Unknown Senders instead of your main message list. You can check that tab occasionally without letting spam interrupt your day.

This is the fastest way to reduce noise. Legitimate senders — your bank, your doctor, a delivery service — usually appear in your contacts or have been texted before, so they still reach your main inbox. Scammers and bulk marketers almost never do.

Key Takeaways

  • Turn on Filter Unknown Senders in Settings > Messages to move spam to a separate tab without deleting it.
  • Block individual numbers by opening the message, tapping the sender's name or number, and choosing Block this Caller.
  • Report spam texts to your carrier by forwarding them to 7726 (SPAM) — this helps your carrier identify patterns and block sources.
  • Never reply to or click links in texts from unknown numbers, even to unsubscribe, because it confirms your number is active.
  • If a text claims to be from your bank or Apple, call the official number on your statement or the company's website instead of using any number in the message.

Block Specific Numbers and Conversations

If the same number keeps texting you, block it directly. Open the conversation, tap the sender's name or number at the top, scroll down, and tap Block this Caller. The person cannot text you again, and their future messages disappear automatically.

You can also block from the contact card: open Contacts, find the number, tap the info button (circle with an i), scroll to the bottom, and tap Block this Caller. Blocked numbers can still leave voicemails, but you will not see their texts or missed calls.

Report Spam to Your Carrier

Your phone company wants to know about spam patterns. Forward junk texts to 7726 (which spells SPAM). Your carrier uses these reports to identify sources and block them for all customers. This takes a few seconds and helps reduce spam for everyone on your network.

To forward a message, open it, tap and hold the message bubble, tap More, tap the forward arrow at the bottom right, type 7726 in the recipient field, and tap Send. Delete the original message after reporting — you do not need to keep it.

Avoid Confirming Your Number Is Active

Replying to spam, clicking links, or tapping "unsubscribe" tells scammers your number is real and monitored. They sell active numbers to other spammers or use them for follow-up attacks. The same applies to calling back unknown numbers or texting "STOP" — it confirms the number works.

If a text claims to be from Apple, your bank, or a delivery service, do not use any phone number or link in the message. Instead, call the official number on your statement, your bill, or the company's official website. Scammers often spoof legitimate company names and include fake links that look real.

Use Do Not Disturb and Focus Modes

If spam is overwhelming, create a Focus mode that silences texts from unknown contacts. Open Settings, tap Focus, tap the plus button, choose Custom, name it (for example, "Quiet"), and tap Customize. Under Allow Notifications From, select Contacts only. This lets through texts from people you know and blocks everything else.

You can schedule this Focus to turn on automatically during work hours or at night. Tap Schedule at the bottom and set the times. Messages still arrive, but you will not hear or see them until you turn off the Focus or check the Unknown Senders tab.

Recognize Common Scam Text Patterns

Spam texts often claim you have a package waiting, your account is locked, or you won a prize. They include a link or ask you to call a number. Real delivery services text you a tracking number and a link to your account — not a generic message asking you to "confirm" or "verify" anything. Real banks never ask you to click a link to log in.

If you are unsure, hang up and call the official number yourself. A text that says "Your Apple ID was used to sign in" with a link is almost always fake — Apple sends these notifications in the Settings app, not SMS. A text claiming your credit card was declined will include your last four digits and a real customer service number from the back of your card, not a link.

Turn Off Group Messaging and Disable Read Receipts

Scammers sometimes add you to group texts to make spam look legitimate or to get you to reply. If you receive a group text from unknown numbers, leave the conversation when ready. Tap Details at the top right, scroll down, and tap Leave this Conversation. You will not receive future messages from that group.

Disabling read receipts also helps: open Settings, tap Messages, and turn off Send Read Receipts. This prevents spammers from knowing whether you opened their message, which can reduce follow-up spam.

Frequently Asked Questions

Will blocking a number stop them from texting me?

Yes. Blocked numbers cannot text you, call you, or reach you through FaceTime. Their messages do not appear in your inbox or anywhere else. They may not know they are blocked — the text may appear to send on their end, but you will never see it.

Can I unblock a number later?

Yes. Open Settings, tap Messages, scroll down to Blocked Contacts, tap Edit, and tap the minus button next to the number you want to unblock. Or open Contacts, find the person, tap the info button, and tap Unblock this Caller.

What happens if I accidentally click a link in a spam text?

Do not panic. If you tapped the link but did not enter any information, your phone is likely fine. If you entered a password, PIN, or credit card number, contact your bank and the relevant company when ready. Change your passwords from a computer or another device. If the link asked for your Apple ID, go to appleid.apple.com and change your password right away.

Why do I still get spam even with Filter Unknown Senders on?

Filter Unknown Senders only moves texts to a separate tab — it does not stop them from arriving. If the same number keeps texting, block it directly. If you are getting many different numbers, report them to 7726 and consider turning on a Focus mode that silences unknown contacts entirely.

Can I report spam to Apple?

Apple does not have a spam reporting system like your carrier does. Report to your carrier by forwarding to 7726. If a text claims to be from Apple and looks suspicious, you can report it to Apple at apple.com/support, but the main action is to block the number and report it to your carrier.