IPv4 market trends

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

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O2 Czech Republic, a.s.

CZ. Active in the transfer logs from 4 Nov 2015 to 19 Feb 2026 in this period.

402.4Kaddresses bought in 45 transfers
12.3Kaddresses sold in 2 transfers
+390.1Knet change in address space

90 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
20 Jun 2024 185.51.240.0 – 185.51.243.255 /22 1K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 176.98.96.0 – 176.98.111.255 /20 4.1K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 212.96.160.0 – 212.96.191.255 /19 8.2K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 178.17.96.0 – 178.17.111.255 /20 4.1K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 178.72.192.0 – 178.72.255.255 /18 16.4K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 46.39.160.0 – 46.39.191.255 /19 8.2K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 185.8.188.0 – 185.8.191.255 /22 1K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 212.4.128.0 – 212.4.159.255 /19 8.2K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 185.15.252.0 – 185.15.255.255 /22 1K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 194.59.240.0 – 194.59.243.255 /22 1K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 185.152.152.0 – 185.152.155.255 /22 1K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 188.175.0.0 – 188.175.255.255 /16 65.5K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 213.211.32.0 – 213.211.63.255 /19 8.2K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 185.191.184.0 – 185.191.187.255 /22 1K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 194.31.216.0 – 194.31.219.255 /22 1K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 89.190.40.0 – 89.190.47.255 /21 2K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 89.31.8.0 – 89.31.15.255 /21 2K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 82.114.192.0 – 82.114.223.255 /19 8.2K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 89.190.48.0 – 89.190.63.255 /20 4.1K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 88.83.224.0 – 88.83.255.255 /19 8.2K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 78.108.144.0 – 78.108.151.255 /21 2K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 91.197.116.0 – 91.197.119.255 /22 1K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 80.243.96.0 – 80.243.111.255 /20 4.1K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 78.41.8.0 – 78.41.15.255 /21 2K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 81.200.48.0 – 81.200.63.255 /20 4.1K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 77.242.80.0 – 77.242.95.255 /20 4.1K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 83.240.0.0 – 83.240.127.255 /17 32.8K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 92.240.160.0 – 92.240.191.255 /19 8.2K Bought Nej.cz s.r.o. RIPE Merger or acquisition
20 Jun 2024 95.143.128.0 – 95.143.143.255 /20 4.1K Bought Nej.cz s.r.o. RIPE Merger or acquisition
14 Nov 2017 92.243.192.0 – 92.243.223.255 /19 8.2K Bought 4Local s.r.o. RIPE Market transfer
14 Nov 2017 81.90.160.0 – 81.90.175.255 /20 4.1K Bought 4Local s.r.o. RIPE Market transfer
14 Nov 2017 85.193.0.0 – 85.193.63.255 /18 16.4K Bought 4Local s.r.o. RIPE Market transfer
14 Nov 2017 217.194.160.0 – 217.194.175.255 /20 4.1K Bought 4Local s.r.o. RIPE Market transfer
14 Nov 2017 83.69.32.0 – 83.69.63.255 /19 8.2K Bought 4Local s.r.o. RIPE Market transfer
14 Nov 2017 217.117.208.0 – 217.117.223.255 /20 4.1K Bought 4Local s.r.o. RIPE Market transfer
14 Nov 2017 88.83.160.0 – 88.83.191.255 /19 8.2K Bought 4Local s.r.o. RIPE Market transfer
25 Feb 2016 80.74.32.0 – 80.74.47.255 /20 4.1K Sold Ceska Telekomunikacni Infrastruktura a.s RIPE Market transfer
25 Feb 2016 85.160.0.0 – 85.161.255.255 /15 131.1K Bought Ceska Telekomunikacni Infrastruktura a.s RIPE Market transfer
25 Feb 2016 37.188.128.0 – 37.188.255.255 /17 32.8K Bought Ceska Telekomunikacni Infrastruktura a.s RIPE Market transfer
4 Nov 2015 90.176.0.0 – 90.176.31.255 /19 8.2K Sold O2 Business Services Slovakia, organizacna zlozka O2 Czech Republic a.s. RIPE Market transfer