AIS
Thailand
★★★ Verified
Customer:
1175
AIS (Advanced Info Service) is Thailand's largest mobile operator, founded 1986, with around 45% market share and 44 million subscribers. Opensignal 2025 reports rank it #1 in 5G speed and experience in Thailand, with median download speeds of 104 Mbps. Prepaid brand 1-2-Call; tourist SIM includes SIM2Fly. Adding *9 suffix to USSD codes returns English responses.
USSD codes by category
5 codesData Packs 1 codes ▾
*111*6#
Check data balance
Recharge & Transfer 1 codes ▾
*120*<voucher>#
Top-up via voucher PIN
SIM Management 2 codes ▾
*113*30*9#
Extend SIM validity 30 days
*113*180*9#
Extend SIM validity 180 days
Other 1 codes ▾
*121#
Main USSD Menu Browser (free)