First, check the certificate itself. Look in the bottom left corner for a bunch of letters and numbers, sometimes called a ""serial number."" That's your number! If you can't find the certificate or the number's missing, contact the office that gave you the certificate in the first place. This could be a local government office or a special department, depending on where you live. Here's how to reach them: Visit their office directly—the most straightforward way to get your number. Call them or email them if they have contact info available. Give them your details, like your name and dad's name, so they can find your number.
