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

Apr 6, 2026 3:56 AM in response to tmmdg

I have an iPhone 14 Pro, running 26.4.


Same issue as well: calls & voicemail numbers cannot be blocked, even AFTER selecting them to block.


Question: is there a limit to the number of phone numbers that can be blocked?


If I clear out my current list of blocked numbers, will that solve the issue?


Of course, it could all re-occur in a period of time as well.


Came across this link as well...


https://www.macobserver.com/news/block-caller-option-missing-ios-26/


Cheers!

Merlin

Apr 10, 2026 12:17 PM in response to Big_Man_258_01

Big_Man_258_01 wrote:

I began having this issue after 26.4 but only with unwanted solicitation TEXTS from “toll free” 8XX- numbers. I could not block them from the Messages app by tapping their number bubble at the top as I always had been able to before.

Blocking spam texts is kind of pointless. The number that the message appears to come from is not the number it actually comes from. And those numbers change more often than you change your underpants.

Apr 25, 2026 7:30 AM in response to IdrisSeabright

It's true that spamming entities use numerous numbers & email addresses to send texts, emails, & calls. There's no stopping spam in general. Blocking them as they're received does help because no more messages get through from those numbers/addresses. I'm getting more spam now because multiple, subsequent messages are getting through from those that would have blocked if blocking contacts was working.

May 1, 2026 1:17 AM in response to tmmdg

Just got a new iPhone 17e about a month ago. Not even a week I had a fully functioning phone. This started quickly and after 2 recent updates, the problems persists, still unable to block junk emails or people in any of my email accounts as well as the tons of spam calls I get daily. Why is this not getting fixed after a month? Very Disappointing Apple

iPhone not blocking calls/emails/voicemails after iOS 26.4

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