Is the batch number of filing freeze notice true or false?

Generally speaking, it is not true. You can judge whether it is true or not from the content of the short message. Usually, the short message sent by the court to the enforcement notice will clearly inform the basic information such as the enforcement case number, the specific name of the enforcement court, the name and contact information of the enforcement judge. Even if it is a concise short message, it must at least have the enforcement case number and the specific name of the enforcement court.