IPv4 market trends

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

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SRI International

US. Active in the transfer logs from 29 Mar 2016 to 4 Apr 2024 in this period.

0addresses bought in 0 transfers
524.3Kaddresses sold in 8 transfers
−524.3Knet change in address space

8 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
4 Apr 2024 130.33.0.0 – 130.33.255.255 /16 65.5K Sold Microsoft Limited ARIN → RIPE Market transfer
4 Apr 2024 130.107.0.0 – 130.107.255.255 /16 65.5K Sold Microsoft Limited ARIN → RIPE Market transfer
30 Nov 2018 128.21.0.0 – 128.21.255.255 /16 65.5K Sold Amazon.com, Inc. (US) ARIN Market transfer
21 Sep 2016 128.106.0.0 – 128.106.255.255 /16 65.5K Sold SingNet Pte Ltd (SG) ARIN → APNIC Market transfer
11 May 2016 128.22.0.0 – 128.22.255.255 /16 65.5K Sold Japan Network Information Center/k-opticom (JP) ARIN → APNIC Market transfer
11 May 2016 128.27.0.0 – 128.27.255.255 /16 65.5K Sold Japan Network Information Center/k-opticom (JP) ARIN → APNIC Market transfer
29 Mar 2016 128.53.0.0 – 128.53.255.255 /16 65.5K Sold Japan Network Information Center/infosphere (JP) ARIN → APNIC Market transfer
29 Mar 2016 128.28.0.0 – 128.28.255.255 /16 65.5K Sold Japan Network Information Center/infosphere (JP) ARIN → APNIC Market transfer