The Thais improved two spots to 102nd on the latest rankings, 29 spots ahead of co-hosts Indonesia who they will meet in Group A of the AFF Suzuki Cup in December. Malaysia, the other confirmed team in the group, are a further 13 spots adrift in 144th.
Thailand coach Bryan Robson, the former England and Manchester United captain, has targeted a place in the top-100 for his side and a good run in the AFF Suzuki Cup would see them achieve that goal.
Holders Vietnam are currently ranked 125th in the world, six spots below three-time champions Singapore who they play in Group B. Mercurial Myanmar, who will also contest Group B, are ranked 141st.
The Philippines, Laos, Cambodia and Timor Leste, who will battle for the two remaining spots in a qualifying tournament in October, are ranked 165th, 177th, 178th and 201st respectively.