Enter a Teudat Zehut into the validator to check if it is a potentially valid Teudat Zehut. If it is valid, this does not neccesarily mean that it is a number currently in use - only that it can potentially be used as a Teudat Zehut because it follows the appropriate patterns and rules.
Site created by Raphi. Algorithm excavated from the website by Golan Telecom