Hutchison Telecommunications Hong Kong Holdings Limited (HTHKH), a subsidiary of Hutchison Whampoa Limited, is a telecommunications service provider. HTHKH provides mobile communications services such as local voice, SMS, MMS, IDD and international roaming, as well as advanced broadband-based data services and applications in Hong Kong and Macau under the brand name, 3. It also offers residential fixed-line broadband service, residential telephone and IDD services in Hong Kong under the brand name, 3 Home Broadband and sophisticated fixed-line services and corporate solutions to Hong Kong and international customers under its HGC brand. The company has a presence in Asia, Americas, Africa, the Middle East and Europe. HTHKH is headquartered in Hong Kong.