Advanced Info Service Public Company Ltd., generally known as Advanced Info Service or AIS, is the biggest mobile phone network operator in Thailand by subscribers.
The current 'wave' logo was introduced on 29 September 2011.
| Regional mobile networks
Wholly-owned subsidiaries: Optus (Australia) | Singtel (Singapore)
Former/defunct assets: HOOQ1
| Asia-Pacific members: Australia: Optus1 | Hong Kong: csl. | India and Sri Lanka: Bharti Airtel1 | Indonesia: Telkomsel1 (Timor-Leste: Telkomcel) | Japan: SoftBank Mobile | Macau: CTM | Malaysia: Maxis Communications | Philippines: Globe Telecom1 | Singapore: Singtel1 | South Korea: SK Telecom | Taiwan: Taiwan Mobile | Thailand: AIS1 | Vietnam: MobiFone
African member: Airtel1 (Chad, DR Congo, Gabon, Ghana, Kenya, Malawi, Madagascar, Niger, Nigeria, Rep. Congo, Rwanda, Seychelles, Tanzania, Uganda and Zambia)
1Wholly- or partly-owned subsidiaries of Singtel.