This disclosure describes systems, methods, and devices related to association identification (AID) re-assignment. A device may perform an association with a station multi-link device (STA MLD), wherein the STA MLD comprises one or more logical entities defining separate station devices. The device may assign a first AID to the STA MLD. The device may establish one or more links with the STA MLD. The device may cause to send an indication of an assignment of a second AID to the STA MLD. The device may communicate with the STA MLD using the second AID.