IPv4 market trends

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

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Microsoft Limited

US. Active in the transfer logs from 22 Jun 2011 to 29 Dec 2025 in this period. Published as Microsoft Corp; Microsoft Corporation; Microsoft Limited.

74Maddresses bought in 348 transfers
131.1Kaddresses sold in 1 transfer
+73.9Mnet change in address space

369 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
6 Jan 2021 4.224.0.0 – 4.239.255.255 /12 1M Bought Level 3 Parent, LLC (US) ARIN Market transfer
7 Oct 2020 4.208.0.0 – 4.223.255.255 /12 1M Bought Level 3 Parent, LLC (US) ARIN Market transfer
7 Jul 2020 4.192.0.0 – 4.207.255.255 /12 1M Bought Level 3 Parent, LLC (US) ARIN Market transfer
26 Mar 2020 4.176.0.0 – 4.191.255.255 /12 1M Bought Level 3 Parent, LLC (US) ARIN Market transfer
6 Jan 2020 4.160.0.0 – 4.175.255.255 /12 1M Bought Level 3 Parent, LLC (US) ARIN Market transfer
11 Dec 2019 72.152.0.0 – 72.155.255.255 /14 262.1K Bought AT&T Corp. (US) ARIN Market transfer
11 Dec 2019 74.234.0.0 – 74.235.255.255 /15 131.1K Bought AT&T Corp. (US) ARIN Market transfer
11 Dec 2019 68.220.0.0 – 68.221.255.255 /15 131.1K Bought AT&T Corp. (US) ARIN Market transfer
11 Dec 2019 68.218.0.0 – 68.219.255.255 /15 131.1K Bought AT&T Corp. (US) ARIN Market transfer
11 Dec 2019 74.240.0.0 – 74.243.255.255 /14 262.1K Bought AT&T Corp. (US) ARIN Market transfer
11 Dec 2019 98.70.0.0 – 98.71.255.255 /15 131.1K Bought AT&T Corp. (US) ARIN Market transfer
11 Dec 2019 70.156.0.0 – 70.157.255.255 /15 131.1K Bought AT&T Corp. (US) ARIN Market transfer
11 Dec 2019 108.140.0.0 – 108.143.255.255 /14 262.1K Bought AT&T Corp. (US) ARIN Market transfer
11 Dec 2019 68.154.0.0 – 68.155.255.255 /15 131.1K Bought AT&T Corp. (US) ARIN Market transfer
11 Dec 2019 98.64.0.0 – 98.67.255.255 /14 262.1K Bought AT&T Corp. (US) ARIN Market transfer
11 Dec 2019 72.144.0.0 – 72.147.255.255 /14 262.1K Bought AT&T Corp. (US) ARIN Market transfer
11 Dec 2019 74.176.0.0 – 74.179.255.255 /14 262.1K Bought AT&T Corp. (US) ARIN Market transfer
11 Dec 2019 68.210.0.0 – 68.211.255.255 /15 131.1K Bought AT&T Corp. (US) ARIN Market transfer
11 Dec 2019 74.160.0.0 – 74.163.255.255 /14 262.1K Bought AT&T Corp. (US) ARIN Market transfer
11 Dec 2019 70.152.0.0 – 70.153.255.255 /15 131.1K Bought AT&T Corp. (US) ARIN Market transfer
11 Dec 2019 68.18.0.0 – 68.19.255.255 /15 131.1K Bought AT&T Corp. (US) ARIN Market transfer
11 Dec 2019 74.224.0.0 – 74.227.255.255 /14 262.1K Bought AT&T Corp. (US) ARIN Market transfer
11 Dec 2019 74.248.0.0 – 74.249.255.255 /15 131.1K Bought AT&T Corp. (US) ARIN Market transfer
4 Oct 2019 4.144.0.0 – 4.159.255.255 /12 1M Bought Level 3 Parent, LLC (US) ARIN Market transfer
17 Jul 2019 4.128.0.0 – 4.143.255.255 /12 1M Bought Level 3 Parent, LLC (US) ARIN Market transfer
18 Oct 2017 20.157.0.0 – 20.157.255.255 /16 65.5K Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.136.0.0 – 20.136.255.255 /16 65.5K Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.144.0.0 – 20.147.255.255 /14 262.1K Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.130.0.0 – 20.130.255.255 /16 65.5K Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.33.0.0 – 20.33.255.255 /16 65.5K Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.150.0.0 – 20.151.255.255 /15 131.1K Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.152.0.0 – 20.152.255.255 /16 65.5K Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.140.0.0 – 20.141.255.255 /15 131.1K Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.34.0.0 – 20.35.255.255 /15 131.1K Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.176.0.0 – 20.179.255.255 /14 262.1K Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.143.0.0 – 20.143.255.255 /16 65.5K Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.192.0.0 – 20.255.255.255 /10 4.2M Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.135.0.0 – 20.135.255.255 /16 65.5K Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.0.0.0 – 20.31.255.255 /11 2.1M Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.153.0.0 – 20.153.255.255 /16 65.5K Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.40.0.0 – 20.47.255.255 /13 524.3K Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.158.0.0 – 20.159.255.255 /15 131.1K Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.48.0.0 – 20.63.255.255 /12 1M Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.64.0.0 – 20.127.255.255 /10 4.2M Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.36.0.0 – 20.39.255.255 /14 262.1K Bought Computer Sciences Corporation (US) ARIN Market transfer
18 Oct 2017 20.128.0.0 – 20.128.255.255 /16 65.5K Bought Computer Sciences Corporation (US) ARIN Market transfer
12 Jun 2017 52.130.0.0 – 52.131.255.255 /15 131.1K Sold Microsoft Singapore Pte. Ltd. (ZZ) ARIN → APNIC Market transfer
22 Mar 2017 194.41.16.0 – 194.41.31.255 /20 4.1K Bought NOKIA Corporation RIPE Market transfer
22 Feb 2017 20.180.0.0 – 20.183.255.255 /14 262.1K Bought Computer Sciences Corporation (US) ARIN Market transfer
22 Feb 2017 20.160.0.0 – 20.175.255.255 /12 1M Bought Computer Sciences Corporation (US) ARIN Market transfer