The 163rd floor of the Burj Khalifa is not accessible to the general public. While observation decks are available to visitors on levels 124, 125, and 148, the uppermost floors, including the 163rd, are typically reserved for other purposes and are not open for public tours.
In summary, only authorized personnel, such as building management, staff, and potentially VIPs, can access the 163rd floor of the Burj Khalifa.