| Prefix | Block | Addresses | First registered | Organization |
|---|---|---|---|---|
| 00:CF:1C | MA-L | 16.8 million | 8 Sep 2000 | Communication Machinery Corporation |
| 02:CF:1C | MA-L | 16.8 million | 8 Sep 2000 | Communication Machinery Corporation |
Former COMMUNICATION MACHINERY CORP. MAC address blocks
The IEEE registry once carried 2 blocks registered to COMMUNICATION MACHINERY CORP.. All 2 blocks are now registered to Communication Machinery Corporation. Communication Machinery Corporation 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.