IPv4 market trends

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

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Concurrent Computer Corporation

US. Active in the transfer logs from 19 Nov 2014 to 13 May 2015 in this period.

0addresses bought in 0 transfers
131.1Kaddresses sold in 2 transfers
−131.1Knet change in address space

2 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
13 May 2015 129.134.0.0 – 129.134.255.255 /16 65.5K Sold Facebook, Inc. (US) ARIN Market transfer
19 Nov 2014 129.75.0.0 – 129.75.255.255 /16 65.5K Sold Microsoft Corporation (US) ARIN Market transfer