Received a text message saying "No number"

This is edited by mobile phone software or computer software. Now, if you go to the mobile business hall to see your SMS records, there is hope that it will be found out. It is best to be accompanied by a police station, otherwise Mobile will not disclose any information unless you have a good relationship with the business hall manager. Your sister is very clever. Your sister is so ignorant. Please spend more time with your mother. I wish you find your sister soon.