Vin numbers encode a bunch of info in them. The first few characters denote the make and model…this being a Model Y forum, those are the same for everyone so they are not included when posting. The last digits are almost treated as Personally identifiable information, and are not the best to share publicly. So what you see are important bits in the middle that encode the month of manufacture, the factory location (A for Austin, F for Fremont) and the significant bits that show how many thousands have been made so far at that factory.
Not sure if I did that justice, others are more knowledgeable here, but noticed no one else had responded yet, so gave it a go to give you the gist.