To tell if someone has blocked your number on an iPhone, you can look for several signs, though there is no definitive notification from Apple:
- Calls go straight to voicemail or ring once then divert: If your calls to the person consistently go to voicemail without ringing or only ring once, it may indicate you are blocked. However, this can also happen if their phone is off or in Do Not Disturb mode
- iMessage delivery status changes: When you send an iMessage, if you no longer see the "Delivered" or "Read" status under your message, it could mean you are blocked. Messages may also switch from blue (iMessage) bubbles to green (SMS), which can be a clue
- Text messages fail to deliver: If your texts never show as delivered or you get error messages, it might suggest blocking, but network issues can cause this too
- FaceTime calls fail: If your FaceTime calls to the person do not go through, it could be another sign of being blocked
- Try calling from another number or hide your caller ID: Calling the person from a different phone or dialing *67 before their number to hide your caller ID can help confirm. If the call goes through from another number or with caller ID hidden, you are likely blocked on your original number
- No direct confirmation: Apple does not notify you if you are blocked, so you need to combine these signs to make a reasonable guess
In summary, if your calls consistently go to voicemail quickly, your iMessages do not show delivered/read receipts, your texts revert to SMS or fail, and calls from other numbers go through, it strongly suggests your number is blocked on iPhone. However, these signs can also result from other settings like Do Not Disturb or network issues, so cross-checking with alternative contact methods is advisable