After the divorce, my ex-husband hacked all my contact information.

I'm sorry to hear the news. After the divorce, your ex-husband blacked out all your contact information. Maybe he wants to keep his distance from you, or he feels emotionally unable to handle his relationship with you, or he wants to cut off contact with you completely.

Whatever the reason, you need to respect his decision. If you want to establish contact with your ex-husband, you can consider giving him some time and space to deal with his feelings and then try to communicate with him. You can express your wishes by email or text message and ask him if he is willing to reply.

However, please note that if your ex-husband makes it clear that he doesn't want to keep in touch with you, you need to respect his decision and leave him alone. Everyone has his own life and emotions to deal with, so it may be a better choice to give him some space.