AS5610 O2 Czech Republic A.S.
IP Address Ranges
| Netblock | From IP | To IP | Number of IPs | |
|---|---|---|---|---|
| 5.23.39.0/24 | 5.23.39.0 | 5.23.39.255 | 256 | |
| 37.188.128.0/17 | 37.188.128.0 | 37.188.255.255 | 32,768 | |
| 78.108.144.0/21 | 78.108.144.0 | 78.108.151.255 | 2,048 | |
| 80.188.0.0/19 | 80.188.0.0 | 80.188.31.255 | 8,192 | |
| 80.188.32.0/21 | 80.188.32.0 | 80.188.39.255 | 2,048 | |
| 80.188.40.0/24 | 80.188.40.0 | 80.188.40.255 | 256 | |
| 80.188.41.0/24 | 80.188.41.0 | 80.188.41.255 | 256 | |
| 80.188.42.0/23 | 80.188.42.0 | 80.188.43.255 | 512 | |
| 80.188.44.0/22 | 80.188.44.0 | 80.188.47.255 | 1,024 | |
| 80.188.48.0/20 | 80.188.48.0 | 80.188.63.255 | 4,096 | |
| 80.188.64.0/18 | 80.188.64.0 | 80.188.127.255 | 16,384 | |
| 80.188.128.0/18 | 80.188.128.0 | 80.188.191.255 | 16,384 | |
| 80.188.192.0/20 | 80.188.192.0 | 80.188.207.255 | 4,096 | |
| 80.188.208.0/21 | 80.188.208.0 | 80.188.215.255 | 2,048 | |
| 80.188.216.0/22 | 80.188.216.0 | 80.188.219.255 | 1,024 | |
| 80.188.220.0/23 | 80.188.220.0 | 80.188.221.255 | 512 | |
| 80.188.222.0/24 | 80.188.222.0 | 80.188.222.255 | 256 | |
| 80.188.223.0/24 | 80.188.223.0 | 80.188.223.255 | 256 | |
| 80.188.224.0/19 | 80.188.224.0 | 80.188.255.255 | 8,192 | |
| 81.90.160.0/21 | 81.90.160.0 | 81.90.167.255 | 2,048 | |
| 81.90.168.0/24 | 81.90.168.0 | 81.90.168.255 | 256 | |
| 81.90.169.0/24 | 81.90.169.0 | 81.90.169.255 | 256 | |
| 81.90.170.0/24 | 81.90.170.0 | 81.90.170.255 | 256 | |
| 81.90.171.0/24 | 81.90.171.0 | 81.90.171.255 | 256 | |
| 81.90.172.0/24 | 81.90.172.0 | 81.90.172.255 | 256 | |
| 81.90.173.0/24 | 81.90.173.0 | 81.90.173.255 | 256 | |
| 81.90.174.0/23 | 81.90.174.0 | 81.90.175.255 | 512 | |
| 83.69.32.0/19 | 83.69.32.0 | 83.69.63.255 | 8,192 | |
| 83.208.0.0/18 | 83.208.0.0 | 83.208.63.255 | 16,384 | |
| 83.208.64.0/18 | 83.208.64.0 | 83.208.127.255 | 16,384 | |
| 83.208.128.0/19 | 83.208.128.0 | 83.208.159.255 | 8,192 | |
| 83.208.160.0/19 | 83.208.160.0 | 83.208.191.255 | 8,192 | |
| 83.208.192.0/20 | 83.208.192.0 | 83.208.207.255 | 4,096 | |
| 83.208.208.0/21 | 83.208.208.0 | 83.208.215.255 | 2,048 | |
| 83.208.216.0/22 | 83.208.216.0 | 83.208.219.255 | 1,024 | |
| 83.208.220.0/22 | 83.208.220.0 | 83.208.223.255 | 1,024 | |
| 83.208.224.0/19 | 83.208.224.0 | 83.208.255.255 | 8,192 | |
| 85.70.0.0/17 | 85.70.0.0 | 85.70.127.255 | 32,768 | |
| 85.70.128.0/17 | 85.70.128.0 | 85.70.255.255 | 32,768 | |
| 85.71.0.0/17 | 85.71.0.0 | 85.71.127.255 | 32,768 | |
| 85.71.128.0/18 | 85.71.128.0 | 85.71.191.255 | 16,384 | |
| 85.71.192.0/19 | 85.71.192.0 | 85.71.223.255 | 8,192 | |
| 85.71.224.0/19 | 85.71.224.0 | 85.71.255.255 | 8,192 | |
| 85.160.0.0/15 | 85.160.0.0 | 85.161.255.255 | 131,072 | |
| 85.193.0.0/18 | 85.193.0.0 | 85.193.63.255 | 16,384 | |
| 88.83.160.0/21 | 88.83.160.0 | 88.83.167.255 | 2,048 | |
| 88.83.168.0/22 | 88.83.168.0 | 88.83.171.255 | 1,024 | |
| 88.83.172.0/23 | 88.83.172.0 | 88.83.173.255 | 512 | |
| 88.83.174.0/24 | 88.83.174.0 | 88.83.174.255 | 256 | |
| 88.83.175.0/24 | 88.83.175.0 | 88.83.175.255 | 256 | |
| 88.83.176.0/20 | 88.83.176.0 | 88.83.191.255 | 4,096 | |
| 88.100.0.0/15 | 88.100.0.0 | 88.101.255.255 | 131,072 | |
| 88.102.0.0/16 | 88.102.0.0 | 88.102.255.255 | 65,536 | |
| 88.103.0.0/16 | 88.103.0.0 | 88.103.255.255 | 65,536 | |
| 90.176.32.0/19 | 90.176.32.0 | 90.176.63.255 | 8,192 | |
| 90.176.64.0/18 | 90.176.64.0 | 90.176.127.255 | 16,384 | |
| 90.176.128.0/19 | 90.176.128.0 | 90.176.159.255 | 8,192 | |
| 90.176.160.0/21 | 90.176.160.0 | 90.176.167.255 | 2,048 | |
| 90.176.168.0/23 | 90.176.168.0 | 90.176.169.255 | 512 | |
| 90.176.170.0/24 | 90.176.170.0 | 90.176.170.255 | 256 | |
| 90.176.171.0/24 | 90.176.171.0 | 90.176.171.255 | 256 | |
| 90.176.172.0/22 | 90.176.172.0 | 90.176.175.255 | 1,024 | |
| 90.176.176.0/20 | 90.176.176.0 | 90.176.191.255 | 4,096 | |
| 90.176.192.0/18 | 90.176.192.0 | 90.176.255.255 | 16,384 | |
| 90.177.0.0/16 | 90.177.0.0 | 90.177.255.255 | 65,536 | |
| 90.178.0.0/15 | 90.178.0.0 | 90.179.255.255 | 131,072 | |
| 90.180.0.0/16 | 90.180.0.0 | 90.180.255.255 | 65,536 | |
| 90.181.0.0/16 | 90.181.0.0 | 90.181.255.255 | 65,536 | |
| 90.182.0.0/18 | 90.182.0.0 | 90.182.63.255 | 16,384 | |
| 90.182.64.0/19 | 90.182.64.0 | 90.182.95.255 | 8,192 | |
| 90.182.96.0/21 | 90.182.96.0 | 90.182.103.255 | 2,048 | |
| 90.182.104.0/22 | 90.182.104.0 | 90.182.107.255 | 1,024 | |
| 90.182.108.0/24 | 90.182.108.0 | 90.182.108.255 | 256 | |
| 90.182.109.0/24 | 90.182.109.0 | 90.182.109.255 | 256 | |
| 90.182.110.0/23 | 90.182.110.0 | 90.182.111.255 | 512 | |
| 90.182.112.0/20 | 90.182.112.0 | 90.182.127.255 | 4,096 | |
| 90.182.128.0/17 | 90.182.128.0 | 90.182.255.255 | 32,768 | |
| 90.183.0.0/16 | 90.183.0.0 | 90.183.255.255 | 65,536 | |
| 91.191.64.0/22 | 91.191.64.0 | 91.191.67.255 | 1,024 | |
| 91.191.68.0/24 | 91.191.68.0 | 91.191.68.255 | 256 | |
| 91.191.70.0/23 | 91.191.70.0 | 91.191.71.255 | 512 | |
| 91.191.72.0/21 | 91.191.72.0 | 91.191.79.255 | 2,048 | |
| 91.191.84.0/22 | 91.191.84.0 | 91.191.87.255 | 1,024 | |
| 91.191.88.0/21 | 91.191.88.0 | 91.191.95.255 | 2,048 | |
| 91.191.96.0/19 | 91.191.96.0 | 91.191.127.255 | 8,192 | |
| 91.193.132.0/22 | 91.193.132.0 | 91.193.135.255 | 1,024 | |
| 91.213.10.0/24 | 91.213.10.0 | 91.213.10.255 | 256 | |
| 91.232.82.0/24 | 91.232.82.0 | 91.232.82.255 | 256 | |
| 92.243.192.0/19 | 92.243.192.0 | 92.243.223.255 | 8,192 | |
| 109.80.0.0/16 | 109.80.0.0 | 109.80.255.255 | 65,536 | |
| 109.81.0.0/18 | 109.81.0.0 | 109.81.63.255 | 16,384 | |
| 109.81.64.0/19 | 109.81.64.0 | 109.81.95.255 | 8,192 | |
| 109.81.96.0/20 | 109.81.96.0 | 109.81.111.255 | 4,096 | |
| 109.81.112.0/20 | 109.81.112.0 | 109.81.127.255 | 4,096 | |
| 109.81.128.0/19 | 109.81.128.0 | 109.81.159.255 | 8,192 | |
| 109.81.160.0/20 | 109.81.160.0 | 109.81.175.255 | 4,096 | |
| 109.81.176.0/20 | 109.81.176.0 | 109.81.191.255 | 4,096 | |
| 109.81.192.0/18 | 109.81.192.0 | 109.81.255.255 | 16,384 | |
| 160.218.0.0/16 | 160.218.0.0 | 160.218.255.255 | 65,536 | |
| 161.195.144.0/24 | 161.195.144.0 | 161.195.144.255 | 256 | |
| 185.61.228.0/22 | 185.61.228.0 | 185.61.231.255 | 1,024 | |
| 185.143.112.0/22 | 185.143.112.0 | 185.143.115.255 | 1,024 | |
| 185.152.152.0/22 | 185.152.152.0 | 185.152.155.255 | 1,024 | |
| 193.17.13.0/24 | 193.17.13.0 | 193.17.13.255 | 256 | |
| 193.84.12.0/23 | 193.84.12.0 | 193.84.13.255 | 512 | |
| 193.84.14.0/23 | 193.84.14.0 | 193.84.15.255 | 512 | |
| 194.50.248.0/23 | 194.50.248.0 | 194.50.249.255 | 512 | |
| 194.165.47.0/24 | 194.165.47.0 | 194.165.47.255 | 256 | |
| 194.228.0.0/19 | 194.228.0.0 | 194.228.31.255 | 8,192 | |
| 194.228.32.0/19 | 194.228.32.0 | 194.228.63.255 | 8,192 | |
| 194.228.64.0/21 | 194.228.64.0 | 194.228.71.255 | 2,048 | |
| 194.228.72.0/22 | 194.228.72.0 | 194.228.75.255 | 1,024 | |
| 194.228.76.0/22 | 194.228.76.0 | 194.228.79.255 | 1,024 | |
| 194.228.80.0/20 | 194.228.80.0 | 194.228.95.255 | 4,096 | |
| 194.228.96.0/19 | 194.228.96.0 | 194.228.127.255 | 8,192 | |
| 194.228.128.0/20 | 194.228.128.0 | 194.228.143.255 | 4,096 | |
| 194.228.144.0/21 | 194.228.144.0 | 194.228.151.255 | 2,048 | |
| 194.228.152.0/22 | 194.228.152.0 | 194.228.155.255 | 1,024 | |
| 194.228.158.0/23 | 194.228.158.0 | 194.228.159.255 | 512 | |
| 194.228.160.0/19 | 194.228.160.0 | 194.228.191.255 | 8,192 | |
| 194.228.192.0/18 | 194.228.192.0 | 194.228.255.255 | 16,384 | |
| 195.5.186.0/24 | 195.5.186.0 | 195.5.186.255 | 256 | |
| 217.117.208.0/20 | 217.117.208.0 | 217.117.223.255 | 4,096 | |
| 217.194.160.0/20 | 217.194.160.0 | 217.194.175.255 | 4,096 |
| Netblock | From IP | To IP | Number of IPs | |
|---|---|---|---|---|
| 2001:67c:dd4::/48 | 2001:67c:dd4:: | 2001:67c:dd4:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2001:41d8::/32 | 2001:41d8:: | 2001:41d8:ffff:ffff:ffff:ffff:ffff:ffff | 79.23 Octillion | |
| 2a00:1028::/32 | 2a00:1028:: | 2a00:1028:ffff:ffff:ffff:ffff:ffff:ffff | 79.23 Octillion | |
| 2a00:1029::/32 | 2a00:1029:: | 2a00:1029:ffff:ffff:ffff:ffff:ffff:ffff | 79.23 Octillion | |
| 2a00:102a::/31 | 2a00:102a:: | 2a00:102b:ffff:ffff:ffff:ffff:ffff:ffff | 158.46 Octillion | |
| 2a00:102c::/30 | 2a00:102c:: | 2a00:102f:ffff:ffff:ffff:ffff:ffff:ffff | 316.91 Octillion | |
| 2a02:9b8::/31 | 2a02:9b8:: | 2a02:9b9:ffff:ffff:ffff:ffff:ffff:ffff | 158.46 Octillion |
Downstreams
- AS2571 DHL Information Services (Europe) S.R.O
- AS8518 Rfe/RL Inc.
- AS13105 Inform LLC
- AS15380 Air Navigation Services of the Czech Republic State Enterprise
- AS16246 O2 Czech Republic A.S.
- AS21241 Global Payments Europe S.R.O.
- AS21942 ON Semiconductor AS
- AS25321 Brink's Cash Solutions (CZ) A.S.
- AS28952 O2 Business Services A.S
- AS35096 ALEF NULA a.s.
- AS38952 Mafra A.S.
- AS39453 Ustav Zdravotnickych Informaci A Statistiky Ceske Republiky
- AS42908 O2 Czech Republic A.S.
- AS43037 Seznam.cz A.S.
- AS43757 ICZAS-CZ
- AS43866 Altron A.S.
- AS47941 Red Hat Ltd
- AS48451 Prazska energetika a.s.
- AS49580 MONETPLUS-AS
- AS50948 Amdocs (UK) Limited
- AS59747 NIX.CZ z.s.p.o.
- AS62083 FIO Banka A.S.
- AS197353 NN Management Services s.r.o.
- AS197920 SKODA ICT s.r.o.
- AS198282 CAH Building s.r.o.
- AS198605 AVAST Software s.r.o.
- AS198991 TV_NOVA_SRO
- AS199059 Maurice Ward & Co. s.r.o.
- AS201163 Komercni Banka A.S.
- AS203411 Fortuna Game A.S.
- AS204172 TTC TELEKOMUNIKACE s.r.o.
- AS204907 Air Bank a.s.
- AS205233 KBC Global Services NV
- AS206613 Tipsport.net A.S.
- AS208712 Cendis S.P.
- AS208906 Synot ICT Services A.S.
- AS208950 Ezpada s.r.o
- AS211274 Quadruple A.S.
- AS215711 The Ministry of Agriculture of the Czech Republic
What is an Autonomous System (AS)?
An Autonomous System (AS) is a collection of connected networks that operate under a common administrative domain and share routing policies. Each AS is identified by a unique Autonomous System Number (ASN), which is used to exchange routing information with other ASs. AS can control how traffic flows through networks and then filter out unwanted traffic.
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