In 2013, There were 76 million pre-paid mobile phone users in Thailand who pay an average of 207 Baht per month. That is up from 74 million in 2012. Compare that number with the 10.9 million post paid users in 2013, it’s quite clear that prepaid is for the majority of the population.
The most popular network is by far AIS with 42% of market share. The 2 smallest players make up less than 2% of the market share, making this essentially a 3 horse race in Thailand.
Users are slowly moving away from voice services and into data services. Also growth is slowing, as penetration is over 100%.