An ID number serves many purposes — not only can it immediately reveal a person’s identity, but it can also provide access to a wide range of other information at a glance. Generally, if you only have a name — or even if you don’t know the name — only investigative authorities or authorized insurance personnel are allowed to obtain this information. However, if you don’t have any personal contacts who can help you look it up, you can also turn to the services of a detective agency to help you find someone’s ID number.
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Are there really websites that can look up people using their ID numbers?
Since more and more people are paying attention to their privacy nowadays, and with the implementation of personal data protection laws, most websites that previously allowed easy access to others’ information have been shut down. Government databases also operate on independent domains, making it nearly impossible for ordinary people to hack into them — and even if they did, it would be illegal. If you truly need this kind of information, it’s best to leave it to a professional investigation agency!
What personal information can be checked with an ID number?
An ID card can reveal not only the person’s name, date of birth, blood type, and household registration address, but also financial status, insurance details, health insurance information, medical records, and more. It can even show which websites the person has registered on, past purchases, credit card bills — basically, any data where the ID number was used could potentially be accessed and clearly seen.
What should you do if you forget your ID number?
In addition to your ID card, your household registration booklet, health insurance card, and various types of driver’s licenses also have the holder’s ID number printed on them. If you use someone else’s ID number, be careful — it could be considered document forgery.
The ID number is a randomly generated code assigned at birth. The first letter indicates the city or county, and the second digit indicates gender (1 for male, 2 for female). For example, a baby girl registered in Taipei City would have an ID number starting with A2. The remaining numbers are unrelated to birthplace or gender.
ID Number Verification Method
There’s a formula to calculate the verification code of an ID number. Multiply each digit in sequence by 1, 9, 8, 7, 6, 5, 4, 3, 2, 1, 1, and then divide the total by 10. If the result is an exact multiple of 10 (i.e., no remainder), it’s a valid ID number. Using this method, you can determine whether an ID number was officially issued by a government agency or if it’s just a random string generated by an online ID generator.
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