Musk retweeted XFreeze's post, which stated that the X platform has begun rolling out the "X Numbers" feature to more users. This is a private in-app contact number for XChat, which users can share with trusted individuals. Anyone with the number can send messages or make calls via the X platform without needing to follow the other person. Users can turn this feature on or off, share the number, and refresh it to invalidate old numbers at any time. This feature integrates messaging, calling, and an exclusive number, all within the X platform.