The administration of SIM cards in the Internet of Things is becoming more and more important, especially when the number of cards used increases sharply because more and more devices are connected. In the melita.io customer portal, we offer many functions that enable efficient and secure management of the cards: from activating/deactivating the SIMs to assigning a card name to the possibility of controlling data consumption Theft/misuse of deactivating the card or triggering actions during set times. These functions are available to all users free of charge, regardless of how many cards they are using. More information at www.melita.io.