Neo Culture Technology or NCT easily gains attention on their Kpop Debuts across Asia and also in the United States. The group is created by SM Entertainment. Many people having a hard time over the fact that they have now 21 members.
NCT stands for Neo Culture Technology. The concept of NCT is the group could have an unlimited amount of members who are constantly shifting into different subunits. Currently, NCT has 21 members with four different subunits. As of now, NCT has 4 subgroups such as NCT U, NCT 127, NCT Dream, and WAYV.

NCT U
The first-ever unit of NCT debuted on the 9th of April 2016 with the song The 7th Sense and Without You. The songs are given to members depending on the vibe of the song.
7th Sense Members: Taeyong, Jaehyun, Ten, Mark and Doyoung
Without You Members: Taeil, Doyoung and Jaehyun
After a successful debut, NCT U made a comeback in February 2018 with song “BOSS” under the members: Taeyong, Jaehyun, Mark, Winwin, Doyoung, including Lucas and Jungwoo as their new members.
In addition, NCT U released new duo Taeyong and Ten and performed “Baby Don’t Stop”
NCT 127
On the 7th of July 2016, NCT 127 debuted. 127 is equivalent to the longitude coordinate of Seoul. The subunits have 10 members: Taeyong, Jaehyun, Yuta, Johnny, Taeil, Doyoung, Jungwoo, Mark, Haechan, and Winwin.
NCT 127 debuted with Fire Truck in July 2016. Of all the subunits, NCT 127 promotes more than the other subunits in terms of traveling and performing in different cities and countries after a successful NEOCITY in the U.S. and Asia last 2019.
NCT DREAM
The concept of this subunit is based on age. All members of NCT Dream are teenagers and under 20 years old. Currently, the members are Jeno, Jaemin, Renjun, Haechan, Chenle, and Jisung. Mark is a former member of NCT Dream but due to the subunit group age concept, he graduated last 2018.
WayV
WayV is a Chinese unit of NCT. The group is focused on marketing and releasing Mandarin Songs. Currently, the members are Ten, Lucas, Winwin, Xiaojun, Kun, YangYang, and Hendery. WayV debuted under China-Exclusive Label of SM Entertainment.
Last May 2019, WayV released their first ever mini-album “Take Off”
Here is a helpful guide diagram of all the sub units members:
