| Prefix | Block | Addresses | First registered | Organization |
|---|---|---|---|---|
| 00:00:6F | MA-L | 16.8 million | 22 Apr 1998 | Madge Ltd. |
| 00:00:C1 | MA-L | 16.8 million | 8 Sep 2000 | Madge Ltd. |
| 00:02:81 | MA-L | 16.8 million | 8 Sep 2000 | Madge Ltd. |
Former MADGE NETWORKS LTD. MAC address blocks
The IEEE registry once carried 3 blocks registered to MADGE NETWORKS LTD.. All 3 blocks are now registered to Madge Ltd.. Madge Ltd. 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.