IPv4 market trends

Prices from IPv4.Global prior sales, last fetched 12 Oct 2026, 06:16 UTC.

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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.

DateRangeBlockAddressesSideCounterpartyRegistriesKind
28 Mar 2024 192.35.234.0 – 192.35.234.255 /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 198.180.207.0 – 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
25 Mar 2024 9.205.0.0 – 9.205.255.255 /16 65.5K Sold Microsoft Limited ARIN → RIPE Market transfer
25 Mar 2024 9.169.0.0 – 9.169.255.255 /16 65.5K Sold Microsoft Limited ARIN → RIPE Market transfer
25 Mar 2024 9.163.0.0 – 9.163.255.255 /16 65.5K Sold Microsoft Limited ARIN → RIPE Market transfer
25 Mar 2024 9.141.0.0 – 9.141.255.255 /16 65.5K Sold Microsoft Limited ARIN → RIPE Market transfer
25 Mar 2024 9.223.0.0 – 9.223.255.255 /16 65.5K Sold Microsoft Limited ARIN → RIPE Market transfer
25 Mar 2024 9.160.0.0 – 9.160.255.255 /16 65.5K Sold Microsoft Limited ARIN → RIPE Market transfer
19 Mar 2024 199.201.254.0 – 199.201.254.255 /24 256 Bought Advantis (US) ARIN Merger or acquisition
19 Mar 2024 198.232.134.0 – 198.232.134.255 /24 256 Bought Advantis (US) ARIN Merger or acquisition
19 Mar 2024 192.124.113.0 – 192.124.113.255 /24 256 Bought Advantis (US) ARIN Merger or acquisition
19 Mar 2024 199.242.142.0 – 199.242.142.255 /24 256 Bought Advantis (US) ARIN Merger or acquisition
8 Mar 2024 192.101.240.0 – 192.101.247.255 /21 2K Bought DataBeam Corporation (US) ARIN Merger or acquisition
8 Mar 2024 192.101.248.0 – 192.101.249.255 /23 512 Bought DataBeam Corporation (US) ARIN Merger or acquisition
8 Mar 2024 192.101.208.0 – 192.101.223.255 /20 4.1K Bought DataBeam Corporation (US) ARIN Merger or acquisition
8 Mar 2024 192.101.224.0 – 192.101.239.255 /20 4.1K Bought DataBeam Corporation (US) ARIN Merger or acquisition
8 Mar 2024 192.101.200.0 – 192.101.207.255 /21 2K Bought DataBeam Corporation (US) ARIN Merger or acquisition
15 Dec 2023 149.131.0.0 – 149.131.127.255 /17 32.8K Sold Kyndryl (US) ARIN Merger or acquisition
15 Dec 2023 149.131.128.0 – 149.131.143.255 /20 4.1K Sold Kyndryl (US) ARIN Merger or acquisition
15 Dec 2023 149.131.144.0 – 149.131.151.255 /21 2K Sold Kyndryl (US) ARIN Merger or acquisition
15 Dec 2023 146.84.0.0 – 146.84.127.255 /17 32.8K Sold Kyndryl (US) ARIN Merger or acquisition
8 Dec 2023 137.42.0.0 – 137.42.255.255 /16 65.5K Bought Chen Systems Corporation (US) ARIN Merger or acquisition
6 Dec 2023 130.213.0.0 – 130.213.255.255 /16 65.5K Sold Microsoft Limited ARIN → RIPE Market transfer
6 Dec 2023 9.145.0.0 – 9.145.255.255 /16 65.5K Sold Microsoft Limited ARIN → RIPE Market transfer
6 Dec 2023 9.234.0.0 – 9.235.255.255 /15 131.1K Sold Microsoft Limited ARIN → RIPE Market transfer
6 Dec 2023 134.149.0.0 – 134.149.255.255 /16 65.5K Sold Microsoft Limited ARIN → RIPE Market transfer
6 Dec 2023 9.146.0.0 – 9.146.255.255 /16 65.5K Sold Microsoft Limited ARIN → RIPE Market transfer
6 Dec 2023 143.241.0.0 – 143.241.255.255 /16 65.5K Sold Microsoft Limited ARIN → RIPE Market transfer
14 Nov 2023 198.187.219.0 – 198.187.219.255 /24 256 Bought Red Brick Systems (US) ARIN Merger or acquisition
14 Nov 2023 192.83.206.0 – 192.83.206.255 /24 256 Bought Red Brick Systems (US) ARIN Merger or acquisition
14 Nov 2023 198.17.203.0 – 198.17.203.255 /24 256 Bought Red Brick Systems (US) ARIN Merger or acquisition
14 Nov 2023 198.17.204.0 – 198.17.204.255 /24 256 Bought Red Brick Systems (US) ARIN Merger or acquisition
14 Nov 2023 198.17.202.0 – 198.17.202.255 /24 256 Bought Red Brick Systems (US) ARIN Merger or acquisition
3 Nov 2023 205.210.232.0 – 205.210.233.255 /23 512 Bought Cognos Incorporated (CA) ARIN Merger or acquisition
17 Oct 2023 204.231.239.0 – 204.231.239.255 /24 256 Bought INFORMIX (ES) ARIN Merger or acquisition
17 Oct 2023 199.103.72.0 – 199.103.72.255 /24 256 Bought Informix (US) ARIN Merger or acquisition
17 Oct 2023 204.79.175.0 – 204.79.175.255 /24 256 Bought INFORMIX (US) ARIN Merger or acquisition
17 Oct 2023 204.231.227.0 – 204.231.227.255 /24 256 Bought INFORMIX (US) ARIN Merger or acquisition
17 Oct 2023 204.79.184.0 – 204.79.184.255 /24 256 Bought INFORMIX (CZ) ARIN Merger or acquisition
17 Oct 2023 199.103.69.0 – 199.103.69.255 /24 256 Bought Informix (US) ARIN Merger or acquisition
17 Oct 2023 192.207.88.0 – 192.207.88.255 /24 256 Bought Illustra Information Technologies, Inc (US) ARIN Merger or acquisition
17 Oct 2023 192.157.175.0 – 192.157.175.255 /24 256 Bought INFORMIX (US) ARIN Merger or acquisition
17 Oct 2023 199.103.70.0 – 199.103.71.255 /23 512 Bought Informix (US) ARIN Merger or acquisition
17 Oct 2023 204.79.144.0 – 204.79.145.255 /23 512 Bought INFORMIX (GB) ARIN Merger or acquisition
25 Sep 2023 134.149.0.0 – 134.149.255.255 /16 65.5K Bought Taligent, Inc. (US) ARIN Merger or acquisition
28 Jul 2023 130.213.0.0 – 130.213.255.255 /16 65.5K Bought Rational (US) ARIN Merger or acquisition
28 Jul 2023 192.41.137.0 – 192.41.137.255 /24 256 Bought Verdix Corporation (US) ARIN Merger or acquisition