| Prefix | Block | Addresses | First registered | Organization |
|---|---|---|---|---|
| 00:80:C2 | MA-L | 16.8 million | 2 Oct 2021 | IEEE 802.1 Working Group |
| 3A:A3:F8 | CID | 16.8 million | 2 Oct 2021 | IEEE 802.1 Working Group |
| 4A:07:D6 | CID | 16.8 million | 2 Oct 2021 | IEEE 802.1 Working Group |
| CA:30:BF | CID | 16.8 million | 2 Oct 2021 | IEEE 802.1 Working Group |
| FA:94:F1 | CID | 16.8 million | 2 Oct 2021 | IEEE 802.1 Working Group |
Former IEEE 802.1 Chair MAC address blocks
The IEEE registry once carried 5 blocks registered to IEEE 802.1 Chair. All 5 blocks are now registered to IEEE 802.1 Working Group. IEEE 802.1 Working Group took over all of them.
Complete as of the current IEEE registry deploy. Dates are when each registration was first observed in public data, not legal assignment dates.