Apple’s iOS 26.6 update appears to add new wording regarding blocked contact limits, although it’s unclear whether the actual limits have changed.
The beta code suggests that users will receive a warning if they exceed the maximum number of blocked contacts. “You have reached the maximum number of blocked contacts. To block additional callers, delete a blocked contact in Settings,” reads the alert titled “Blocked Contacts Limit Reached.”
Based on discussions on Apple’s social media and support communities, some users were unable to block additional contacts after reaching a limit of 20,000. Other people mentioned experiencing issues after 8,000, and some experienced issues with even fewer phone numbers blocked. Apple does not provide documentation on blocking limits.
With limits in the thousands at least, it’s unlikely that most people will have had blocking issues, although someone who regularly blocks spam calls could eventually hit a ceiling. iOS 26.6 could make it clearer when a limit has been reached and how to fix it.
Deleting old blocked contacts is the solution, which can be done by going to Settings > Apps > Phone > Blocked Contacts. There is no bulk unblock tool, and the easiest way to delete a contact is to swipe left on each entry. Alternatively, you can select Edit, tap the red minus button next to each contact and choose the unblock option.
iOS 26 added a Ask Reason for Calling option that sends calls from people not in your contacts directly to voicemail, which is an easier option for handling unwanted calls than blocking phone numbers. When the feature is enabled, a caller can indicate the reason for their call and the person receiving the call can decide whether or not to answer. Alternatively, all calls from unknown numbers can be silenced and sent to voicemail without alerting using the Silence option.
Missed calls and voicemails from unknown callers can also be filtered into a separate unknown callers list in the Phone app. Some carriers also offer a separate spam detection option that can send calls from known spammers to the spam list.
Apple released the first beta of iOS 26.6 to developers today, and the software could soon be made available to public beta testers. A public release is likely planned in several weeks. So far, there are no other known features in iOS 26.6.
