South Korea - RNN no longer uses check digit

[ssukienn]

Following:

• https://en.wikipedia.org/wiki/Resident_registration_number

After October 2020, b, n, c are random numbers

• https://centers.ibs.re.kr/html/living_en/overview/arc.html#:~:text=The%2013%2Ddigit%20number%20with,26%2D34%20%E2%80%93%20Gangwon%20Province

With some effort to learn the meaning behind the codes, it has been possible to know where someone was born, which could potentially result is discrimination and unwillingly letting people know someone’s hometown. From October 2020, these last six-digits will become arbitrary for the issuance of new cards.