I am utterly unsure of myself.

For code-type locks that don't need a key, there are 'free dial' systems where you can set any number you like, and fixed types where the number is set in advance.

Article 25 In order to comprehensively promote disclosure of the information it holds, the Government shall endeavor to enhance measures concerned with the provision of information held by Administrative Organs, so as to make clear to the citizens through timely and appropriate methods the information that Administrative Organs hold.