150 days from purchase date
According to the latest laws and regulations in Hong Kong SAR, customers must complete the real-name registration of the SIM card before using in Hong Kong SAR. If the information does not meet the requirements, your real-name registration will be rejected and cannot be used in Hong Kong SAR. Please pay attention to the SMS and email notification for the result. The personal information in this section is only used for real-name registration.
You may refer to the link below for the steps to register: