AID12

MAC 12 bits Trigger frame unverified

The low twelve bits of the association identifier this instruction is for.

Reading a capture

The same AID an Association Response handed out. Twelve bits here rather than fourteen because two of them are not needed to distinguish stations within one BSS, and space in this frame is worth more than the range.

Where it sits

Trigger MPDU > User Info > AID12

Open in the explorer — Trigger frame

Accuracy

Clause: 802.11-2024 §9.3.1.22.2
Verified: Not verified against the standard. Treat this as a claim, not a fact.