| Prefix | Block | Addresses | First registered | Organization |
|---|---|---|---|---|
| 70:B3:D5:06:0 | MA-S | 4.1 thousand | 2 Nov 2019 | RCH SPA |
| 70:B3:D5:15:9 | MA-S | 4.1 thousand | 9 Nov 2019 | RCH SPA |
| 70:B3:D5:23:3 | MA-S | 4.1 thousand | 11 Mar 2023 | RCH SPA |
| 70:B3:D5:29:4 | MA-S | 4.1 thousand | 22 Mar 2020 | RCH SPA |
| 70:B3:D5:6B:D | MA-S | 4.1 thousand | 25 Dec 2019 | RCH SPA |
| 70:B3:D5:78:6 | MA-S | 4.1 thousand | 6 Nov 2019 | RCH SPA |
| 70:B3:D5:88:E | MA-S | 4.1 thousand | 4 Dec 2019 | RCH SPA |
| 70:B3:D5:97:D | MA-S | 4.1 thousand | 26 Dec 2019 | RCH SPA |
| 70:B3:D5:C0:9 | MA-S | 4.1 thousand | 11 Jan 2020 | RCH SPA |
| 70:B3:D5:DA:9 | MA-S | 4.1 thousand | 3 Oct 2019 | RCH SPA |
Former RCH Vietnam Limited Liability Company MAC address blocks
The IEEE registry once carried 10 blocks registered to RCH Vietnam Limited Liability Company. All 10 blocks are now registered to RCH SPA. RCH SPA 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.