Do you want to understand how your Swedish identity number is created… or maybe not, it is explained here. If you know how it is calculated after the first 6 digits which is your date of birth, then it must be pretty easy for others to work this out?

Although I did get from a source that one can just ring up the Swedish Tax Agency and ask for any Swedish residents personal ID. I haven’t tested this yet.. but I am sorely tempted to try 😉