Thailand’s National Broadcasting and Telecommunications Commission (NBTC) has just advised of a new free service to block spam SMS on your Thai mobile phone.
The solution is simple. You just dial *137 and call out. You can repeat this call again if needed.
The *137 anti spam number apparently works on all networks with the exception of TOT3G. If you are using that service there is also a free solution. You must type your name, then a space, then the letter “b” then 137 and call out.
If you experience difficulties using these anti spam solutions you can make a free call to 1200 and then press 1 for assistance.
To download a copy of the NBTC flyer on their SMS anti spam solution click here.