1. Inquire about the express order number: each express has a unique order number. At ordinary times, you can enter the single number on the courier company official website or the mobile phone App for inquiry. In this way, you can know the delivery location, transportation route and current delivery status of the express delivery.
2. Contact the sender: If you know that the courier is sent by an individual or company, you can contact them directly and ask about the source and logistics information of the courier. They may tell you the courier company you use and the corresponding courier number.
3. Consult the customer service of the courier company: If you know which courier company you are using, you can contact the customer service department of the courier company and provide them with relevant information, such as the name and telephone number of the recipient. They will help you check the sender and delivery place of the single number.