The latest World Futsal Ranking, released on Wednesday, saw Iran claim the sixth spot.
The Asian powerhouse collected 1,603 points to end the year as the highest-ranked Asian team.
Brazil and Spain took the one-two of the ranking with 1,839 and 1,787 points, respectively.
Russian stood third with 1,654pts, followed by Portugal and Argentina.
Following Iran in the Asian rankings, Japan (1,378pts) and Thailand (1,323pts) sat 15th and 19th in the world ranking.
Iran will take part at the 2020 AFC Futsal Championship in Turkmenistan in late February, where it is drawn in Group D alongside South Korea, Saudi Arabia and Thailand.