IBM
US. Active in the transfer logs from 13 Sep 2017 to 21 Sep 2026 in this period.
0addresses bought in 0 transfers
6Maddresses sold in 90 transfers
−6Mnet change in address space
263 transfers
Every range this organisation was on either side of, newest first, including mergers and acquisitions. Addresses are the size of the range; a block is shown when the range is one CIDR prefix.
| Date | Range | Block | Addresses | Side | Counterparty | Registries | Kind |
|---|---|---|---|---|---|---|---|
| 20 May 2025 | 9.158.0.0 – 9.158.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 20 May 2025 | 9.173.0.0 – 9.173.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 20 May 2025 | 9.140.0.0 – 9.140.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 20 May 2025 | 9.198.0.0 – 9.198.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 20 May 2025 | 9.157.0.0 – 9.157.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 20 May 2025 | 9.159.0.0 – 9.159.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 20 May 2025 | 9.192.0.0 – 9.192.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 7 May 2025 | 167.125.0.0 – 167.125.255.255 | /16 | 65.5K | Bought | The GEMINI Group (CA) | ARIN | Merger or acquisition |
| 28 Mar 2025 | 9.139.0.0 – 9.139.255.255 | /16 | 65.5K | Sold | Brightspeed (US) | ARIN | Market transfer |
| 28 Mar 2025 | 9.134.0.0 – 9.134.255.255 | /16 | 65.5K | Sold | Brightspeed (US) | ARIN | Market transfer |
| 28 Mar 2025 | 9.144.0.0 – 9.144.255.255 | /16 | 65.5K | Sold | Brightspeed (US) | ARIN | Market transfer |
| 28 Mar 2025 | 9.138.0.0 – 9.138.255.255 | /16 | 65.5K | Sold | Brightspeed (US) | ARIN | Market transfer |
| 9 Dec 2024 | 9.129.0.0 – 9.129.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 9 Dec 2024 | 9.132.0.0 – 9.132.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 9 Dec 2024 | 9.131.0.0 – 9.131.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 9 Dec 2024 | 9.130.0.0 – 9.130.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 9 Dec 2024 | 9.136.0.0 – 9.136.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 9 Dec 2024 | 9.133.0.0 – 9.133.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 16 Sep 2024 | 9.248.0.0 – 9.248.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 16 Sep 2024 | 9.166.0.0 – 9.166.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 16 Sep 2024 | 9.228.0.0 – 9.228.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 16 Sep 2024 | 9.167.0.0 – 9.167.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 16 Sep 2024 | 9.231.0.0 – 9.231.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 16 Sep 2024 | 9.229.0.0 – 9.229.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 29 Aug 2024 | 204.86.13.0 – 204.86.13.255 | /24 | 256 | Bought | Apptio Inc (US) | ARIN | Merger or acquisition |
| 19 Aug 2024 | 205.210.142.0 – 205.210.142.255 | /24 | 256 | Bought | IBM Canada Ltd (CA) | ARIN | Merger or acquisition |
| 19 Aug 2024 | 204.138.98.0 – 204.138.98.255 | /24 | 256 | Bought | IBM Canada Ltd (CA) | ARIN | Merger or acquisition |
| 19 Aug 2024 | 199.246.40.0 – 199.246.40.255 | /24 | 256 | Bought | IBM Canada Ltd (CA) | ARIN | Merger or acquisition |
| 19 Aug 2024 | 204.138.97.0 – 204.138.97.255 | /24 | 256 | Bought | IBM Canada Ltd (CA) | ARIN | Merger or acquisition |
| 17 Jun 2024 | 9.149.0.0 – 9.149.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 17 Jun 2024 | 9.177.0.0 – 9.177.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 17 Jun 2024 | 9.185.0.0 – 9.185.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 17 Jun 2024 | 9.135.0.0 – 9.135.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 17 Jun 2024 | 9.220.0.0 – 9.220.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 17 Jun 2024 | 9.164.0.0 – 9.164.255.255 | /16 | 65.5K | Sold | Microsoft Limited | ARIN → RIPE | Market transfer |
| 14 Jun 2024 | 192.187.135.0 – 192.187.135.255 | /24 | 256 | Bought | Unison Software, Inc. (US) | ARIN | Merger or acquisition |
| 14 Jun 2024 | 205.167.234.0 – 205.167.235.255 | /23 | 512 | Bought | Software Artistry, Inc. (US) | ARIN | Merger or acquisition |
| 7 Jun 2024 | 192.232.8.0 – 192.232.9.255 | /23 | 512 | Bought | Pure Software, Inc. (US) | ARIN | Merger or acquisition |
| 7 Jun 2024 | 192.232.10.0 – 192.232.10.255 | /24 | 256 | Bought | Pure Software, Inc. (US) | ARIN | Merger or acquisition |
| 7 Jun 2024 | 192.232.1.0 – 192.232.1.255 | /24 | 256 | Bought | Pure Software, Inc. (US) | ARIN | Merger or acquisition |
| 7 Jun 2024 | 192.232.2.0 – 192.232.3.255 | /23 | 512 | Bought | Pure Software, Inc. (US) | ARIN | Merger or acquisition |
| 7 Jun 2024 | 192.232.4.0 – 192.232.7.255 | /22 | 1K | Bought | Pure Software, Inc. (US) | ARIN | Merger or acquisition |
| 30 May 2024 | 96.8.88.0 – 96.8.95.255 | /21 | 2K | Sold | The Weather Company (US) | ARIN | Merger or acquisition |
| 28 Mar 2024 | 198.180.207.0 – 198.180.207.255 | /24 | 256 | Bought | IBM T.J. Watson Research Center (US) | ARIN | Merger or acquisition |
| 28 Mar 2024 | 192.35.238.0 – 192.35.238.255 | /24 | 256 | Bought | IBM T.J. Watson Research Center (US) | ARIN | Merger or acquisition |
| 28 Mar 2024 | 192.35.235.0 – 192.35.235.255 | /24 | 256 | Bought | IBM T.J. Watson Research Center (US) | ARIN | Merger or acquisition |
| 28 Mar 2024 | 192.35.237.0 – 192.35.237.255 | /24 | 256 | Bought | IBM T.J. Watson Research Center (US) | ARIN | Merger or acquisition |
| 28 Mar 2024 | 198.206.218.0 – 198.206.218.255 | /24 | 256 | Bought | IBM T.J. Watson Research Center (US) | ARIN | Merger or acquisition |
| 28 Mar 2024 | 192.35.239.0 – 192.35.239.255 | /24 | 256 | Bought | IBM T.J. Watson Research Center (US) | ARIN | Merger or acquisition |
| 28 Mar 2024 | 198.182.248.0 – 198.182.248.255 | /24 | 256 | Bought | IBM T.J. Watson Research Center (US) | ARIN | Merger or acquisition |