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HomeCompaniesO2 Czech Republic, a.s.
ISP

O2 Czech Republic, a.s.

O2 Czech Republic, a.s. uses 1,446,518 IPv4 addresses in 1,609 ranges, and 35 IPv6 ranges, by the registry records IP Company reads.

o2.cz·Czechia

1,446,518
IPv4 addresses
1,609
IPv4 ranges
35
IPv6 ranges
10
ASes it operates
3
countries

About the company

Who it is, where it is registered and who owns it.

Description
Global brand name owned by the Spanish telecommunications company Telefónica
Founded
2001
Headquarters
Slough
Industry
telecommunications, telecommunications industry
Parent
Telefónica

Who routes its space

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

  1. AS5610 O2 Czech Republic, a.s.1,434,335 · 99.16%
  2. AS49767 O2 Czech Republic, a.s.5,110 · 0.35%
  3. AS44070 O2 Czech Republic, a.s.2,456 · 0.17%
  4. AS198282 CAH Building s.r.o.1,788 · 0.12%
  5. AS47681 O2 Czech Republic, a.s.1,024 · 0.07%
  6. AS43866 Altron a.s.512 · 0.04%
  7. AS28725 CETIN a.s.257 · 0.02%
  8. AS21430 WIA spol. s.r.o.8 · 0.00%
  9. AS39791 Telco Pro Services, a. s.4 · 0.00%

Where its space is

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

  1. Czechia1,463,008 · 100.00%
  2. Costa Rica16 · 0.00%
  3. Luxembourg16 · 0.00%

Networks it operates

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

ASNNAMETYPEREGISTEREDIPV4
AS5610O2 Czech Republic, a.s.ISPCzechia1,540,608
AS49767O2 Czech Republic, a.s.ISPCzechia5,120
AS44070O2 Czech Republic, a.s.ISPCzechia4,096
AS47681O2 Czech Republic, a.s.ISPCzechia1,024
AS20884O2 Czech Republic, a.s.ISPCzechia0
AS25036O2 Czech Republic, a.s.ISPCzechia0
AS35214O2 Czech Republic, a.s.ISPCzechia0
AS41824O2 Czech Republic, a.s.ISPCzechia0
AS61169O2 Czech Republic, a.s.ISPCzechia0
AS202522O2 Czech Republic, a.s.ISPCzechia0

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
AS5610Selective1-5TbpsBalancedRegional10

Internet exchanges

The internet exchanges its networks connect at, by the capacity of their ports there: 1 exchange, 2 ports and 2.4 Tbps in all.

EXCHANGEWHEREPORTSCAPACITY
NIX.CZPrague, Czechia22.4 Tbps

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
49.2 Mbps
median download
18.7 Mbps
median upload
27,420
download tests
24,660
upload tests

Its address ranges

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

first 100 of 1,644
RANGEIPV4ORIGIN
85.160.65.193-85.161.255.255114,239AS5610
90.179.211.229-90.181.125.255109,083AS5610
88.100.27.34-88.101.85.5880,409AS5610
88.102.143.72-88.103.118.15059,215AS5610
90.178.182.141-90.179.155.7758,561AS5610
90.177.97.178-90.178.13.12843,983AS5610
83.208.59.18-83.208.207.25538,126AS5610
88.102.2.85-88.102.140.15335,397AS5610
85.70.225.53-85.71.106.6835,088AS5610
85.70.94.11-85.70.225.5133,577AS5610
37.188.128.0/1732,768AS5610
109.80.128.0-109.80.238.25528,416AS5610
90.178.76.76-90.178.182.13927,200AS5610
160.218.132.116-160.218.229.8824,805AS5610
90.176.239.229-90.177.73.11122,923AS5610
160.218.11.125-160.218.95.25521,635AS5610
85.70.11.250-85.70.94.921,008AS5610
88.103.128.0-88.103.204.20119,658AS5610
85.160.0.0-85.160.65.14416,785AS5610
109.80.0.0/1816,384AS5610
109.80.64.0/1816,384AS5610
109.81.16.0/20109.81.32.0/19109.81.64.0/2016,384AS5610
109.81.80.0/20109.81.96.0/19109.81.128.0/2016,384AS5610
90.176.170.110-90.176.233.14216,161AS5610
90.178.13.246-90.178.76.7415,957AS5610
90.176.60.70-90.176.119.10315,138AS5610
88.101.200.182-88.102.0.8114,236AS5610
88.101.100.198-88.101.155.19914,082AS5610
85.71.106.163-85.71.159.25513,661AS5610
90.179.164.161-90.179.211.22512,097AS5610
88.101.158.91-88.101.200.18010,842AS5610
90.183.165.211-90.183.208.1510,813AS5610
85.71.188.255-85.71.227.2559,985AS5610
85.193.28.0/2285.193.32.0/199,216AS5610
109.81.189.11-109.81.222.1328,570AS5610
160.218.96.0/198,192AS5610
85.71.160.0-85.71.188.2537,422AS5610
83.208.223.94-83.208.251.2557,330AS5610
90.176.32.0-90.176.60.687,237AS5610
88.100.0.0-88.100.27.326,945AS5610
160.218.229.96-160.218.255.2556,816AS5610
92.243.192.0/2092.243.208.0/2192.243.216.0/246,400AS5610
90.177.73.113-90.177.97.1766,208AS5610
83.208.22.77-83.208.43.1815,481AS5610
90.176.119.105-90.176.140.1925,464AS5610
90.181.171.0-90.181.191.335,154AS5610
90.181.199.0-90.181.218.1455,010AS5610
88.103.224.0/2088.103.240.0/2388.103.242.0/244,864AS5610
80.188.137.132-80.188.156.574,790AS5610
90.176.152.0-90.176.170.974,706AS5610
80.188.97.255-80.188.115.864,440AS5610
109.80.239.0/24109.80.240.0/204,352AS5610
83.208.0.0-83.208.16.144,111AS5610
109.81.0.0/204,096AS5610
109.81.160.0/204,096AS5610
90.182.59.83-90.182.75.724,086AS5610
83.208.43.183-83.208.59.163,930AS5610
88.101.85.60-88.101.100.483,829AS5610
90.181.229.0-90.181.242.2553,584AS5610
109.81.228.0-109.81.240.1133,186AS5610
90.183.52.127-90.183.64.2333,179AS5610
80.188.207.0-80.188.218.2553,072AS5610
90.183.102.0/2390.183.104.0/2190.183.112.0/233,072AS5610
85.70.0.0-85.70.11.2483,065AS5610
109.72.4.45-109.72.15.2553,027AS49767
160.218.0.0-160.218.11.1072,924AS5610
85.71.229.0/2485.71.230.0/2385.71.232.0/212,816AS5610
90.182.248.0/2190.183.0.0/2390.183.2.0/242,816AS5610
90.183.214.0/2390.183.216.0/2190.183.224.0/242,816AS5610
194.228.175.2-194.228.185.2552,814AS5610
90.182.225.0-90.182.235.1612,722AS5610
90.181.245.0-90.181.255.142,575AS5610
90.181.131.163-90.181.140.2552,397AS5610
90.179.155.89-90.179.164.1592,375AS5610
90.182.0.73-90.182.9.1272,359AS5610
80.188.66.0-80.188.75.472,352AS5610
83.208.208.0/2183.208.216.0/242,304AS5610
90.181.153.0-90.181.161.2172,266AS5610
90.182.160.55-90.182.169.92,259AS5610
90.176.141.139-90.176.149.2552,165AS5610
90.183.133.236-90.183.141.2412,054AS5610
90.182.36.30-90.182.44.332,052AS5610
85.193.0.0/212,048AS5610
90.182.216.0/212,048AS5610
90.182.196.140-90.182.203.2551,908AS5610
90.182.171.23-90.182.178.91,779AS5610
88.103.118.152-88.103.125.1281,769AS5610
90.182.189.165-90.182.196.1381,766AS5610
109.81.176.0-109.81.182.2211,758AS5610
90.183.237.123-90.183.243.2551,669AS5610
90.181.143.0-90.181.149.1291,666AS5610
90.182.142.243-90.182.149.971,647AS5610
90.182.235.163-90.182.242.81,638AS5610
90.183.81.168-90.183.87.2551,624AS5610
109.81.182.223-109.81.189.91,579AS5610
90.181.191.229-90.181.197.2551,563AS5610
80.188.82.248-80.188.88.2551,544AS5610
83.208.16.16-83.208.22.201,541AS5610
80.188.4.0/2280.188.8.0/231,536AS5610
90.182.101.129-90.182.107.1271,535AS5610

Names it registers under

The holder names its registry records give, by the IPv4 under each.

  1. O2 Czech Republic, a.s.1,445,482 · 99.93%
  2. Altron a.s.512 · 0.04%
  3. ABIS Czech, a.s.256 · 0.02%
  4. CGI IT Czech Republic s.r.o.256 · 0.02%
  5. ALTRON, a.s.8 · 0.00%
  6. ALTRON4 · 0.00%
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