AS42908 O2 Czech Republic A.S.
IP Address Ranges
| Netblock | From IP | To IP | Number of IPs | |
|---|---|---|---|---|
| 5.102.48.0/20 | 5.102.48.0 | 5.102.63.255 | 4,096 | |
| 31.10.56.0/21 | 31.10.56.0 | 31.10.63.255 | 2,048 | |
| 45.159.116.0/22 | 45.159.116.0 | 45.159.119.255 | 1,024 | |
| 46.183.56.0/21 | 46.183.56.0 | 46.183.63.255 | 2,048 | |
| 46.231.72.0/21 | 46.231.72.0 | 46.231.79.255 | 2,048 | |
| 77.95.192.0/21 | 77.95.192.0 | 77.95.199.255 | 2,048 | |
| 78.136.128.0/18 | 78.136.128.0 | 78.136.191.255 | 16,384 | |
| 80.78.136.0/22 | 80.78.136.0 | 80.78.139.255 | 1,024 | |
| 80.79.0.0/22 | 80.79.0.0 | 80.79.3.255 | 1,024 | |
| 80.87.176.0/20 | 80.87.176.0 | 80.87.191.255 | 4,096 | |
| 80.90.128.0/20 | 80.90.128.0 | 80.90.143.255 | 4,096 | |
| 80.243.236.0/22 | 80.243.236.0 | 80.243.239.255 | 1,024 | |
| 80.251.240.0/20 | 80.251.240.0 | 80.251.255.255 | 4,096 | |
| 88.81.64.0/19 | 88.81.64.0 | 88.81.95.255 | 8,192 | |
| 91.187.32.0/19 | 91.187.32.0 | 91.187.63.255 | 8,192 | |
| 92.61.80.0/20 | 92.61.80.0 | 92.61.95.255 | 4,096 | |
| 93.92.48.0/21 | 93.92.48.0 | 93.92.55.255 | 2,048 | |
| 93.93.32.0/21 | 93.93.32.0 | 93.93.39.255 | 2,048 | |
| 94.241.64.0/18 | 94.241.64.0 | 94.241.127.255 | 16,384 | |
| 109.108.96.0/19 | 109.108.96.0 | 109.108.127.255 | 8,192 | |
| 176.102.128.0/19 | 176.102.128.0 | 176.102.159.255 | 8,192 | |
| 178.17.80.0/20 | 178.17.80.0 | 178.17.95.255 | 4,096 | |
| 185.78.12.0/22 | 185.78.12.0 | 185.78.15.255 | 1,024 | |
| 185.82.236.0/22 | 185.82.236.0 | 185.82.239.255 | 1,024 | |
| 185.108.60.0/22 | 185.108.60.0 | 185.108.63.255 | 1,024 | |
| 185.157.240.0/22 | 185.157.240.0 | 185.157.243.255 | 1,024 | |
| 188.119.96.0/22 | 188.119.96.0 | 188.119.99.255 | 1,024 | |
| 193.42.128.0/22 | 193.42.128.0 | 193.42.131.255 | 1,024 | |
| 193.107.252.0/22 | 193.107.252.0 | 193.107.255.255 | 1,024 | |
| 213.19.0.0/17 | 213.19.0.0 | 213.19.127.255 | 32,768 | |
| 213.155.32.0/19 | 213.155.32.0 | 213.155.63.255 | 8,192 | |
| 213.250.192.0/18 | 213.250.192.0 | 213.250.255.255 | 16,384 | |
| 217.170.96.0/20 | 217.170.96.0 | 217.170.111.255 | 4,096 | |
| 217.196.112.0/20 | 217.196.112.0 | 217.196.127.255 | 4,096 | |
| 217.197.144.0/20 | 217.197.144.0 | 217.197.159.255 | 4,096 |
| Netblock | From IP | To IP | Number of IPs | |
|---|---|---|---|---|
| 2a00:e4c0::/32 | 2a00:e4c0:: | 2a00:e4c0:ffff:ffff:ffff:ffff:ffff:ffff | 79.23 Octillion | |
| 2a01:9f40::/29 | 2a01:9f40:: | 2a01:9f47:ffff:ffff:ffff:ffff:ffff:ffff | 633.83 Octillion | |
| 2a02:2428::/32 | 2a02:2428:: | 2a02:2428:ffff:ffff:ffff:ffff:ffff:ffff | 79.23 Octillion | |
| 2a02:2588::/29 | 2a02:2588:: | 2a02:258f:ffff:ffff:ffff:ffff:ffff:ffff | 633.83 Octillion | |
| 2a03:1600::/32 | 2a03:1600:: | 2a03:1600:ffff:ffff:ffff:ffff:ffff:ffff | 79.23 Octillion | |
| 2a03:7a00::/32 | 2a03:7a00:: | 2a03:7a00:ffff:ffff:ffff:ffff:ffff:ffff | 79.23 Octillion | |
| 2a03:a820::/32 | 2a03:a820:: | 2a03:a820:ffff:ffff:ffff:ffff:ffff:ffff | 79.23 Octillion | |
| 2a07:cc80::/29 | 2a07:cc80:: | 2a07:cc87:ffff:ffff:ffff:ffff:ffff:ffff | 633.83 Octillion | |
| 2a0c:8b40::/29 | 2a0c:8b40:: | 2a0c:8b47:ffff:ffff:ffff:ffff:ffff:ffff | 633.83 Octillion |
Upstreams
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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