Site Codes

• All cards are made up of a site code and a card number. The site code is designed to be unique to a particular site or building, meaning that a card from one building would not allow access at another building, even if the card number was the same.
• With 125kHz, there are so many producers of cards worldwide and a relatively small number of site codes available, that it is possible - or even likely - that many legitimate versions of the same card exist.
• With ICT Secured Mifare and Mifare DESFire cards, every site is registered with its own globally unique site code, and every card produced is recorded in our secure database. This ensures that duplicate cards are never created.