| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 00:0D:4B | MA-L | 16.8 million | US | 1 Jun 2003 |
| 08:05:81 | MA-L | 16.8 million | US | 23 Jun 2015 |
| 10:59:32 | MA-L | 16.8 million | US | 17 Sep 2019 |
| 20:EF:BD | MA-L | 16.8 million | US | 4 Nov 2020 |
| 30:6A:4F | MA-L | 16.8 million | US | 15 Sep 2026 |
| 34:5E:08 | MA-L | 16.8 million | US | 20 Apr 2023 |
| 50:06:F5 | MA-L | 16.8 million | US | 2 Apr 2024 |
| 54:4E:F0 | MA-L | 16.8 million | US | 10 Jul 2025 |
| 60:92:C8 | MA-L | 16.8 million | US | 22 Jan 2025 |
| 7C:67:AB | MA-L | 16.8 million | US | 13 Apr 2022 |
| 84:EA:ED | MA-L | 16.8 million | US | 15 Apr 2020 |
| 88:DE:A9 | MA-L | 16.8 million | US | 22 Jun 2016 |
| 8A:C7:2E | CID | 16.8 million | US | 28 May 2017 |
| 8C:49:62 | MA-L | 16.8 million | US | 8 May 2019 |
| 9C:F1:D4 | MA-L | 16.8 million | US | 21 Nov 2023 |
| A8:B5:7C | MA-L | 16.8 million | US | 25 Aug 2021 |
| AC:3A:7A | MA-L | 16.8 million | US | 5 Aug 2014 |
| AC:AE:19 | MA-L | 16.8 million | US | 5 Aug 2018 |
| B0:A7:37 | MA-L | 16.8 million | US | 5 Mar 2014 |
| B0:EE:7B | MA-L | 16.8 million | US | 13 Sep 2016 |
| B8:3E:59 | MA-L | 16.8 million | US | 7 Aug 2012 |
| B8:A1:75 | MA-L | 16.8 million | US | 24 Nov 2015 |
| BC:D7:D4 | MA-L | 16.8 million | US | 12 May 2021 |
| C8:3A:6B | MA-L | 16.8 million | US | 29 Dec 2016 |
| CC:6D:A0 | MA-L | 16.8 million | US | 8 Jul 2011 |
| D0:4D:2C | MA-L | 16.8 million | US | 25 Mar 2015 |
| D4:BE:DC | MA-L | 16.8 million | US | 14 Sep 2024 |
| D4:E2:2F | MA-L | 16.8 million | US | 30 Mar 2022 |
| D8:31:34 | MA-L | 16.8 million | US | 1 Jul 2019 |
| DC:3A:5E | MA-L | 16.8 million | US | 5 Sep 2012 |
| EC:9B:75 | MA-L | 16.8 million | US | 26 Jan 2026 |
| F8:B2:2C | MA-L | 16.8 million | US | 19 May 2026 |
Every block registered to Roku, Inc in the IEEE registries, complete. Free-text search also matches former owners.