IPv4 market trends

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

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Adknowledge, Inc.

US. Active in the transfer logs from 30 Sep 2014 to 19 Aug 2019 in this period.

16.4Kaddresses bought in 1 transfer
27.6Kaddresses sold in 7 transfers
−11.3Knet 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
19 Aug 2019 216.145.208.0 – 216.145.223.255 /20 4.1K Sold Mimecast North America Inc (US) ARIN Market transfer
3 Jun 2019 170.253.0.0 – 170.253.63.255 /18 16.4K Sold XTRA TELECOM S.A. ARIN → RIPE Market transfer
16 May 2019 216.21.208.0 – 216.21.215.255 /21 2K Sold Silver Star Communications (US) ARIN Market transfer
16 Apr 2019 162.249.196.0 – 162.249.199.255 /22 1K Sold Vertex Inc. (US) ARIN Market transfer
13 Mar 2019 216.21.216.0 – 216.21.223.255 /21 2K Sold NetsurfUSA, Inc. (US) ARIN Market transfer
12 Feb 2019 208.81.248.0 – 208.81.251.255 /22 1K Sold DRW Holdings, LLC (US) ARIN Market transfer
4 Feb 2019 204.137.28.0 – 204.137.31.255 /22 1K Sold Small Exchange, Inc. (US) ARIN Market transfer
30 Sep 2014 170.253.0.0 – 170.253.63.255 /18 16.4K Bought Arthur Andersen, LLP (US) ARIN Market transfer