Sverige Personnummer Sök

Validate and Generate a Sverige Personnummer Sök Easily and Quickly


This is a Sverige Personnummer Sök validation tool, you can enter the appropriate value to get the verification results, for the convenience of use, the tool provides a generator, you can use the generator to test the results.

What is Sverige Personnummer Sök?

The Sverige Personnummer Sök composed of 10 digits and a hyphen. The first 6 digits correspond to the person's birthdate, in YYMMDD format. They are followed by a hyphen, and four final digits. People over the age of 100 replace the hyphen with a plus sign. Among the four last digits, the first three are a serial number. The last digit of these three represents gender. An odd number is assigned to males and an even number to females. The last digit of SSN is the checksum which is calculated using Luhn algorithm.

SSN Generation and Validation?

The SSN Generator is designed to developers in need of randomly generated data for testing cases. The SSN validation validates the numbers pattern for a given state area code. Therefore, if a SSN passes this tool validation, it doesn't mean that it really exists, only that it's code, for the given pattern, is possible. This is the same validation that guarantees the basic authentication, of generated ssn's, for forms under development, as they merely checks for a possible pattern. Generated SSN's aren't real, and shouldn't be used on attempt of any illegal activity.

Searching for a personnummer

People arrive at a page like this one wanting one of two quite different things, and it is worth separating them clearly, because this tool only does the second.

Looking up a person — not here

This page cannot find anyone's personal identity number, and no amount of entering names or birth dates will make it. It has no register behind it and no access to any.

Sweden does maintain a national population register, and certain data from it is available through SPAR, the state personal address register, along with commercial services licensed to resell it. Those routes have conditions attached: you generally need a stated legitimate purpose, and access is logged. The Swedish Tax Agency can tell you your own number if you can prove who you are.

Anything that promises to look up a stranger's personnummer instantly and for free is either failing to do what it claims or handling personal data it should not be handling.

Checking a number you already have — yes

What this tool does is structural validation. Paste in a number and it will tell you whether the date is real, the format parses, and the Luhn check digit agrees with the rest.

That is genuinely useful when you are checking a number transcribed from a form, a scan, or a phone call — the commonest errors are a single wrong digit or two swapped, and the checksum catches both.

It cannot tell you whether the number was ever issued, or to whom. A number can be perfectly well-formed and belong to nobody at all.

Generating numbers for testing

The generator produces fake numbers that satisfy every structural rule, which makes them suitable for exercising validation code, seeding test databases and filling in development forms. They are not real, and are not connected to any person.

This matters more than it might seem. Under the GDPR a real personnummer sitting in a test fixture is still personal data, with all the obligations that carries. Generated numbers carry none of that risk while testing exactly the same code paths.

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