iPhone not blocking calls/emails/voicemails after iOS 26.4

iOS 26.4 is now preventing iPhone from Blocking unwanted phone numbers, email address and voicemails.


Ever since installing iOS 26.4 on my iphone 17 pro max on March 25, 2026, iPhone will no longer block sender of calls, voicemails or emails...


Before the recent iOS update, one could swipe left on the respective phone number and select either "Block" or "Block and Report Spam" - to be clear, these steps and options are still appearing on my iPhone. However, before the update, if you selected one of the aforementioned block options, then the respective phone number, voicemail or email would then display "O-slash" symbol to indicate that the respective phone number, etc. had been successfully blocked. One could also swipe left again on the phone number/voicemail/email and then also confirm that the phone number, etc. had been successfully been blocked by seeing the option to "Unblock" the respective phone number, etc.


Now, after the iOS 26.4 update, the O-slash symbol does not appear and the option to Unblock does not appear either - the "Block" option continues to appear indicating that the respective phone number, email address or voicemail is still not blocked.


As I stated above I'm using an iPhone 17 pro max with iOS 26.4; all apps are current. Ive restarted my device several times and made no changes to any of my settings before or after the iOS update.

iPhone 17 Pro Max, iOS 26

Posted on Mar 29, 2026 10:36 AM

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Question marked as Top-ranking reply

Posted on May 13, 2026 1:57 PM

Thank you for the feedback. I waited for an iOS update to resolve the problem but unfortunately it didn’t happen. I was able to restore the block function by going to Settings / General / Transfer or Reset IPhone / Reset / Reset All Settings. Keep in mind when selecting this option you will lose all current settings and all the numbers previously blocked. I lost over 17,000 but I’m back in the game of blocking trash calls.

167 replies

May 13, 2026 4:56 PM in response to tmmdg

It’s unlikely this blocking issue will be resolved with any updates. I bought a new phone 17 Pro Max and was able to block numbers fine until I restored my previous phone to the new one thevissue followed With the Restore. It’s likely a corruption of some sort or another of the database and there is no interest in resolving it for the few thousand people having the issue. That’s a pretty small number in relation. But you all will be pleased to know that those rainbow colored backgrounds are working awesome!

May 26, 2026 10:03 AM in response to deckerowner

deckerowner wrote:
They may be all well and good but I still want the capability put back the problem with Apple owning the universe is they stopped listening to their customers my phone is paid for lock stock and barrel I am two steps away from going Android google chrome after 20 years of loyalty

I'm sorry but I have no idea what you're trying to say. Apple is not in control of the people sending spam messages (on any system). They don't have the ability to prevent people from spoofing numbers or email addresses.


Furthermore, since Apple doesn't read here for feedback or suggestions, they are not going to see that you have intentions of moving to another platform.


You can let them know how you feel here:


Product Feedback - Apple


Jun 10, 2026 7:26 AM in response to tmmdg

Hello I am having the same issue, I block a number and it doesn’t block it. They continue calling from same numbers that I previously blocked. I go back to the Block function and it is not blocked. I click Block Contact again but still doesn’t block the number. It’s driving me nuts with spam calls. I am on 26.5.1 update. Please fix or tell me how to fix.

Jun 10, 2026 2:08 PM in response to tmmdg

I have an iPhone 14 with IOS of 26.5. I could block numbers until about a week ago. Now I can’t block calls, auto filter spam calls out or filter out unknown calls, even with my settings set to filter out spams & unknown callers. I have restarted my phone many times with no success.

I have also virus scanned, adware scanned and malware scanned my phone several times but none of my settings are working as I set them up.

I hope there is a fix out there as right now I don’t feel like my phone is secure anymore.

Jun 14, 2026 6:40 PM in response to tmmdg

I wanna know why I just can’t block a contact like I did before. I’m not texting Abby. I don’t have time to be gone and figuring all this out and turn it on and off and all that I just want to be able to hit blocked number and delete it and it be done so what are my options now because I keep getting all these Roto dial and spam calls and I’m over it

Jun 16, 2026 9:00 AM in response to tmmdg

I have iOS 26.5 and suddenly today when I try to block a phone number of a text that I received it didn’t work. What I do is I click on the phone number and scroll down to block contact when I click on it. The next pop-up opens up and I click on that, but it is not showing the number is blocked I tried it on several different numbers and I’m getting the same results.

iPhone not blocking calls/emails/voicemails after iOS 26.4

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