Unicom's mobile phone number is activated as follows: 1. Prepaid users: From September 1 2003, new prepaid users need to register their real names first. After success, they can activate your number by making voice calls, video calls, surfing the Internet on mobile phones, sending short messages, etc. (except calling the special telephone number stipulated by the state and Unicom customer service hotline); 2. Post-paid users: When opening an account, the staff of Unicom will directly open the number for you, and you can use it directly.