Find useful consumer information about mobile communications services from Office of the Telecommunications Authority (OFTA) through this link. There are guidelines on choosing service providers, different types of charging schemes in the market, hotlines for reporting loss of mobile phone or SIM cards and more.

You can refer to this list of mobile network service operators providing mobile service in Hong Kong, and access their websites.

Learn how to stay in touch and what to do in an emergency in country parks. A series of digital maps showing general information about mobile phone network coverage over individual hiking trails are available for your easy reference. You can also look for useful advice about using mobile phones and walkie-talkies in country parks.

Check out the procedure to lodge a complaint against a telecommunications operator on possible breach of the Telecommunications Ordinance. You can also learn more about the jurisdiction of the Office of the Telecommunications Authority (OFTA) and its handling of consumer complaints through this website.