Can I determine without calling the number if someone has my number blocked

So u can do easily u go to ur settings, iPhone , show my caller id u turn it off to not show ur caller I’d the call the number the number it will show unknown and will go thew if u been blocked. It’s a way to unblock ur self Make sure u turn it back on if you call and goes threw when u turn off called if I’d ur been blocked but u can override it this way. If they answer u don’t want them to know hang up they will never know. If u want to talk to them then u can. No one know it a way to override when someone blacked u.

Unfortunatly, that’s not possible. You’re have to call the number.

No.

Even if you call the number, you will not be able to determine if your number is blocked - unless either the call completes or you ask the person who owns the potentially blocking telephone.