Optus is the **second-largest telecommunications company in Australia**, serving over 11 million customers and employing more than 7,000 people[1][4]. Headquartered in Macquarie Park, Sydney, it operates as a wholly owned subsidiary of Singapore’s Singtel group since its acquisition in 2001[3][4]. The company’s name, Optus, derives from Latin, meaning “to choose” or “to decide,” reflecting its customer-centric approach[3]. Founded initially as AUSSAT Pty Ltd., a government-owned satellite operator, Optus was privatized and rebranded as Optus Communications before becoming Cable & Wireless Optus and finally Singtel Optus after acquisition[3]. It provides a wide range of telecommunications services including **mobile and fixed-line telephony, broadband, satellite communications, multimedia entertainment, and business network solutions**[1][2][4]. Its mobile network covers 98.5% of the Australian population, with ongoing plans to reach full national coverage by 2025, supported by partnerships such as with SpaceX for satellite internet[4]. Optus runs one of Australia's most advanced satellite fleets, consisting of multiple D-series satellites and others, enabling extensive coverage beyond Australia to regions like New Zealand, Southeast Asia, and remote islands[3]. The company also offers exclusive entertainment services, including Optus Sport, which streams premium sports content, and Optus Music, catering to diverse consumer interests[2]. In addition to consumer services, Optus supports government and corporate sectors with specialized offerings such as commercial VoIP, secure government internet gateways, and ICT services through subsidiaries like Alphawest[4]. The company emphasizes innovation, sustainability, and social impact, partnering with initiatives like the Shared Value Project to foster social entrepreneurship and community value[1]. Overall, Optus stands as a key player in Australia's telecommunications landscape, balancing technological advancement with customer engagement and social responsibility.