All SIM cards (including SIM service plans and pre-paid SIM cards) issued by local telecommunications service providers for use in Hong Kong are required to complete real-name registration before service activation.
Maximum Number of Registered SIM Cards
- Pre-paid SIM cards: a maximum of 10 for each individual user per telecommunications service provider, and a maximum of 25 for each corporate user per telecommunications service provider.
- SIM service plan cards: no registration limit.
Completing Registration Using Your Own Identity

- Users shall complete the real-name registration with their own original identity documents.
- Do not buy or resell cards that are claimed to have been registered.
- Telecommunications service providers conduct sample checks on the registered information from time to time. Upon the receipt of an SMS message from his / her telecommunications service providers using the designated sender address "#SIMREG", the user must provide his / her own identity document again as soon as possible by following the instructions provided in the SMS message for verification of the registered information. If the user subject to sample check is unable to provide relevant information to complete the verification before the stipulated deadline, the relevant pre-paid SIM card will be deregistered and cannot be used afterwards.
Completing Registration with Ease Using "iAM Smart"
- Starting from Q4 2024, telecommunications service providers fully adopt “iAM Smart” as default method for registration by holders of Hong Kong Identity Card.
- If your real-name registration for a pre-paid SIM card is not verified through "iAM Smart", telecommunications service providers will need to conduct manual visual checking of your registration information before activating the SIM card. This manual process may take additional time. To avoid delays, OFCA strongly encourage the public to complete real-name registration using "iAM Smart".
Thematic Webpage
https://www.ofca.gov.hk/simregTo Know More, Watch the Short Video