| Prefix | Block | Addresses | First registered | Organization |
|---|---|---|---|---|
| 28:63:36 | MA-L | 16.8 million | 5 Dec 2013 | Siemens AG |
| AC:64:17 | MA-L | 16.8 million | 25 Aug 2017 | Siemens AG |
Former Siemens AG - Industrial Automation - EWA MAC address blocks
The IEEE registry once carried 2 blocks registered to Siemens AG - Industrial Automation - EWA. All 2 blocks are now registered to Siemens AG. Siemens AG 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.