| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 08:76:83 | MA-L | 16.8 million | CN | 30 Jul 2026 |
| 20:98:ED | MA-L | 16.8 million | CN | 24 Jan 2024 |
| 2C:CC:7A | MA-L | 16.8 million | CN | 7 Aug 2025 |
| 2C:D8:DE | MA-L | 16.8 million | CN | 31 Jul 2024 |
| 30:BE:29 | MA-L | 16.8 million | CN | 24 Dec 2024 |
| 34:98:7C | MA-L | 16.8 million | CN | 24 Sep 2026 |
| 38:54:F5 | MA-L | 16.8 million | CN | 19 Jul 2024 |
| 38:77:07 | MA-L | 16.8 million | CN | 22 Feb 2025 |
| 38:BE:AB | MA-L | 16.8 million | CN | 17 Sep 2021 |
| 44:29:1E | MA-L | 16.8 million | CN | 26 Jan 2022 |
| 44:72:AC | MA-L | 16.8 million | CN | 27 Mar 2024 |
| 48:A4:FD | MA-L | 16.8 million | CN | 11 Jun 2024 |
| 48:D0:1C | MA-L | 16.8 million | CN | 3 Jun 2025 |
| 4C:2F:7B | MA-L | 16.8 million | CN | 28 Jan 2025 |
| 4C:37:DE | MA-L | 16.8 million | CN | 14 Jan 2025 |
| 4C:60:BA | MA-L | 16.8 million | CN | 18 Aug 2023 |
| 50:EE:9B | MA-L | 16.8 million | CN | 12 Feb 2026 |
| 54:14:E9 | MA-L | 16.8 million | CN | 24 Mar 2026 |
| 58:C5:87 | MA-L | 16.8 million | CN | 2 May 2025 |
| 5C:4E:EE | MA-L | 16.8 million | CN | 6 Jul 2024 |
| 60:56:EE | MA-L | 16.8 million | CN | 24 Aug 2024 |
| 60:DC:81 | MA-L | 16.8 million | CN | 11 Feb 2023 |
| 64:70:84 | MA-L | 16.8 million | CN | 15 Jan 2026 |
| 68:48:B4 | MA-L | 16.8 million | CN | 7 Mar 2026 |
| 6C:22:1A | MA-L | 16.8 million | CN | 26 May 2023 |
| 6C:A6:13 | MA-L | 16.8 million | CN | 7 May 2026 |
| 78:F1:3B | MA-L | 16.8 million | CN | 25 Aug 2026 |
| 7C:AA:DE | MA-L | 16.8 million | CN | 8 Mar 2025 |
| 80:1A:23 | MA-L | 16.8 million | CN | 9 Jul 2026 |
| 80:E8:69 | MA-L | 16.8 million | CN | 2 Feb 2026 |
| 84:7A:B6 | MA-L | 16.8 million | CN | 20 Dec 2020 |
| 88:28:7D | MA-L | 16.8 million | CN | 11 Jun 2022 |
| 8C:5C:53 | MA-L | 16.8 million | CN | 1 Jul 2025 |
| 90:31:4B | MA-L | 16.8 million | CN | 11 Nov 2022 |
| 94:FF:7D | MA-L | 16.8 million | CN | 25 Jul 2025 |
| 98:08:18 | MA-L | 16.8 million | CN | 18 Jul 2026 |
| 98:87:CC | MA-L | 16.8 million | CN | 10 Sep 2026 |
| 98:A8:29 | MA-L | 16.8 million | CN | 8 Dec 2023 |
| 9C:1C:37 | MA-L | 16.8 million | CN | 11 Feb 2021 |
| A0:CA:4A | MA-L | 16.8 million | CN | 11 Jun 2026 |
| A4:EF:15 | MA-L | 16.8 million | CN | 22 Sep 2021 |
| B4:FB:E3 | MA-L | 16.8 million | CN | 26 Jul 2020 |
| BC:AD:AE | MA-L | 16.8 million | CN | 4 Apr 2025 |
| C0:2E:DF | MA-L | 16.8 million | CN | 10 Sep 2025 |
| C0:8A:60 | MA-L | 16.8 million | CN | 8 May 2024 |
| C4:58:78 | MA-L | 16.8 million | CN | 15 Aug 2026 |
| D0:A6:51 | MA-L | 16.8 million | CN | 26 Jun 2026 |
| D8:3A:36 | MA-L | 16.8 million | CN | 21 Oct 2025 |
| D8:3E:EB | MA-L | 16.8 million | CN | 29 Dec 2025 |
| E0:22:A1 | MA-L | 16.8 million | CN | 14 Nov 2024 |
| E0:D3:F0 | MA-L | 16.8 million | CN | 9 Apr 2026 |
| E8:2D:79 | MA-L | 16.8 million | CN | 10 Dec 2025 |
| E8:F4:94 | MA-L | 16.8 million | CN | 24 Sep 2024 |
| F4:1C:26 | MA-L | 16.8 million | CN | 1 Oct 2025 |
| F4:B1:9C | MA-L | 16.8 million | CN | 4 Jun 2021 |
| F4:E2:5D | MA-L | 16.8 million | CN | 20 Nov 2025 |
| FC:FD:71 | MA-L | 16.8 million | CN | 15 Apr 2026 |
Every block registered to AltoBeam Inc. in the IEEE registries, complete. Free-text search also matches former owners.