skip content

Location

The yessign Certification center is a certification authority run by the Korea
Telecommunications and Clearings Institute(KFTC)

yessign Certification Center

add: 10-3, Jeongja-dong, Bundang-gu, Seongnam-si, Gyeonggi-do 13556

Customer center: +82-1577-5500 (Work day 09:00~17:00)