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ISP

O2 Czech Republic, a.s.

O2 Czech Republic, a.s. uses 16,599 IPv4 addresses in 72 ranges, and 7 IPv6 ranges, by the registry records IP Company reads.

itself.cz·Czechia

16,599
IPv4 addresses
72
IPv4 ranges
7
IPv6 ranges
1
AS it operates
2
countries

Who routes its space

The networks announcing its IPv4, by the addresses each announces.

  1. AS12570 O2 Czech Republic, a.s.16,599 · 100.00%

Where its space is

Its IPv4 that IP Geolocation places, by country. A /24 counts for the company using most of it.

  1. Czechia17,888 · 99.82%
  2. The Netherlands32 · 0.18%

Networks it operates

The autonomous systems registered under its domain, by the IPv4 each announces anywhere.

ASNNAMETYPEREGISTEREDIPV4
AS12570O2 Czech Republic, a.s.ISPCzechia49,664

How its networks peer

Each network's peering policy, traffic, ratio and reach as its operator states them, with the internet exchanges and facilities it is at.

ASNPOLICYTRAFFICRATIOSCOPEEXCHANGESFACILITIES
AS12570SelectiveBalancedEurope17

Internet exchanges

The internet exchanges its networks connect at, by the capacity of their ports there: 1 exchange, 1 port and 10 Gbps in all.

EXCHANGEWHEREPORTSCAPACITY
BR-IXBrno, Czechia110 Gbps

Facilities

The datacenters and colocation sites its networks are in: 7 in 2 countries, the country with the most first.

FACILITYWHERE
Master DC BrnoBrno, Czechia
itself TH BrnoBrno, Czechia
itself TH IvančiceIvančice, Czechia
CE Colo PraguePrague, Czechia
TTC TELEPORT DC1Prague, Czechia
Sitel BratislavaBratislava, Slovakia
Slovak University of TechnologyBratislava, Slovakia

What the databases see

Addresses each address-keyed database holds in its IPv4, as a share of it, with the largest providers. A /24 counts for the company using most of it; counts overlap.

Speed tests

Speeds measured from its space in the last 90 days.

From M-Lab
21.7 Mbps
median download
11.9 Mbps
median upload
313
download tests
277
upload tests

Its address ranges

Its largest IPv4 ranges, then its IPv6 ones, as IP Company draws them, a CIDR a row, with the network announcing each.

RANGEIPV4ORIGIN
109.105.38.0/23512AS12570
109.105.40.0/23512AS12570
109.105.42.0/24256AS12570
88.83.252.0/221,024AS12570
109.105.53.192/2664AS12570
109.105.54.0/23512AS12570
109.105.56.0/24256AS12570
109.105.48.0/23512AS12570
109.105.50.0/24256AS12570
109.105.57.0/24256AS12570
109.105.58.0/23512AS12570
109.105.61.0/24256AS12570
109.105.62.0/23512AS12570
212.4.139.0/24256AS12570
212.4.140.0/23512AS12570
213.211.48.0/23512AS12570
213.211.50.0/24256AS12570
185.8.188.0/23512AS12570
185.8.190.0/25128AS12570
185.8.190.128/304AS12570
212.4.156.0-212.4.158.104617AS12570
109.105.51.0/24256AS12570
109.105.52.0/24256AS12570
88.83.231.0/24256AS12570
88.83.232.0/24256AS12570
185.8.190.133-185.8.191.255379AS12570
212.96.178.156-212.96.179.255356AS12570
212.4.158.168-212.4.159.255344AS12570
212.96.163.0/24256AS12570
212.96.164.0/2732AS12570
212.4.144.0/24256AS12570
212.4.145.0/24256AS12570
212.4.147.0/24256AS12570
212.96.167.0/24256AS12570
213.211.32.0/24256AS12570
213.211.52.0/24256AS12570
80.78.151.0/24256AS12570
80.78.155.0/24256AS12570
88.83.225.0/24256AS12570
88.83.228.0/24256AS12570
88.83.236.0/24256AS12570
88.83.238.0/24256AS12570
88.83.245.0/24256AS12570
89.190.42.0/24256AS12570
89.190.54.0/24256AS12570
89.190.63.0/24256AS12570
212.96.160.0/25128AS12570
212.96.160.128/2664AS12570
213.211.54.80/2816AS12570
213.211.54.96/2732AS12570
213.211.54.128/25128AS12570
212.96.178.0-212.96.178.146147AS12570
109.105.53.64/2664AS12570
109.105.53.128/2664AS12570
212.96.165.0/25128AS12570
213.211.43.0/25128AS12570
212.4.153.144/2816AS12570
212.4.153.160/2732AS12570
212.4.153.192/2664AS12570
212.96.164.128/2664AS12570
212.96.164.192/298AS12570
109.105.45.192/2664AS12570
212.96.183.0/2664AS12570
212.96.161.160/2732AS12570
212.96.161.192/2816AS12570
212.96.161.208/298AS12570
109.105.45.88/298AS12570
109.105.45.96/2732AS12570
212.4.158.128/2732AS12570
212.4.158.160/298AS12570
212.96.160.200/298AS12570
212.96.160.208/2816AS12570
212.96.160.224/2816AS12570
213.211.43.216/298AS12570
213.211.43.224/2732AS12570
212.4.136.96/2732AS12570
212.4.138.0/2732AS12570
212.4.138.224/2732AS12570
212.4.153.32/2732AS12570
212.96.161.96/2732AS12570
212.96.162.96/2732AS12570
212.96.165.192/2732AS12570
212.96.183.64/2732AS12570
212.4.136.64/2816AS12570
212.4.136.80/298AS12570
212.4.158.110/312AS12570
212.4.158.112/2816AS12570
109.105.53.32/2816AS12570
109.105.53.48/2816AS12570
212.4.138.88/298AS12570
212.4.138.96/298AS12570
212.4.152.188/304AS12570
212.4.152.192/298AS12570
212.4.152.200/304AS12570
212.96.164.232/298AS12570
212.96.164.240/298AS12570
212.96.165.128/2816AS12570
109.105.45.52/304AS12570
109.105.45.56/298AS12570
212.96.160.240/298AS12570
212.96.162.184/298AS12570
212.96.162.208/298AS12570
212.96.178.148/304AS12570
212.96.178.152/312AS12570
212.96.178.154/321AS12570
212.4.152.100/304AS12570
109.105.45.48/312AS12570
109.105.45.50/321AS12570
212.4.158.106/312AS12570
212.4.158.108/321AS12570
109.105.45.8/321AS12570
2001:4ba8:a00::-2001:4baf:ffff:ffff:ffff:ffff:ffff:ffffAS12570
2001:4ba8:500::/47AS12570
2001:4ba8:502::/48AS12570
2001:4ba8:302::/47AS12570
2001:4ba8:102::/48AS12570
2001:4ba8:104::/48AS12570
2001:4ba8:201::/48AS12570
2001:4ba8::/48AS12570
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