If you want to check how much time you have remaining (time balance) on your AIS aircard account, go to the below:

http://www.ais.co.th/mobileinternet/online/check-balance/

Wait till it loads and it will tell you what kind of package you have and your remaining minutes. It's in Thai, but easily understandable.

Here's an example: EDGE/GPRS Package ของคุณคือ mobileNET30HrsFree1M คงเหลือ 1131 นาที สามารถใช้งานได้ถึง 08/05/2012

Maybe everybody else knows this already, but I thought it'd be handy to post if someone searched for the topic.

good to see alternative. usually for prepaid ais, use *121# to check balance/validity. 121*1# to check bonus money., 121*2# for mao-mao minutes used/expire date.*777# to see current plan details. *139# to check plan usage.

"2nd best time to plant a tree is today." Sent from TV android app.