Tell If Someone Blocked Your Number on iPhone is easiest when you use the iPhone feature that directly controls the task instead of changing several unrelated settings.
- Call the person once and note whether the call repeatedly goes directly to voicemail.
- Send a normal message and look only for delivery behavior that is actually shown by the service.
- Try contacting the person later rather than repeatedly calling.
- Use another agreed communication method if the matter is important.
There is no definitive iPhone screen that tells you another person blocked your number. Call behavior, missing delivery indicators, and unavailable FaceTime can have many other causes.
A single call going to voicemail is especially weak evidence because the recipient may have no service, be on another call, use Focus, or have the phone turned off. Avoid repeated test calls; they do not produce a reliable answer.
When finished, verify the result in the app or setting you changed before making additional adjustments.