They are Hong Kong, Thailand, Taiwan, Singapore, Vietnam, Indonesia, Malaysia, Cambodia and Brunei, according to the agency, SM Entertainment.
"Holler," the title song of the group’s first mini-album since 2012, also ranked high on iTunes pop albums' charts in other countries - second both in Finland and Japan, and third in Sweden.
At home, the song took the No. 1 spot on real-time charts of eight online music services on Wednesday.
The group, also called TaeTiseo, consists of Taeyeon, Tiffany and Seohyun from the nine-member Girls’ Generation.