AS12570 O2 Czech Republic A.S.
IP Address Ranges
| Netblock | From IP | To IP | Number of IPs | |
|---|---|---|---|---|
| 80.78.144.0/22 | 80.78.144.0 | 80.78.147.255 | 1,024 | |
| 80.78.148.0/23 | 80.78.148.0 | 80.78.149.255 | 512 | |
| 80.78.151.0/24 | 80.78.151.0 | 80.78.151.255 | 256 | |
| 80.78.152.0/21 | 80.78.152.0 | 80.78.159.255 | 2,048 | |
| 88.83.224.0/19 | 88.83.224.0 | 88.83.255.255 | 8,192 | |
| 89.190.40.0/21 | 89.190.40.0 | 89.190.47.255 | 2,048 | |
| 89.190.48.0/22 | 89.190.48.0 | 89.190.51.255 | 1,024 | |
| 89.190.54.0/24 | 89.190.54.0 | 89.190.54.255 | 256 | |
| 89.190.56.0/21 | 89.190.56.0 | 89.190.63.255 | 2,048 | |
| 109.105.32.0/19 | 109.105.32.0 | 109.105.63.255 | 8,192 | |
| 185.8.188.0/22 | 185.8.188.0 | 185.8.191.255 | 1,024 | |
| 193.17.248.0/22 | 193.17.248.0 | 193.17.251.255 | 1,024 | |
| 195.78.122.0/23 | 195.78.122.0 | 195.78.123.255 | 512 | |
| 212.4.128.0/22 | 212.4.128.0 | 212.4.131.255 | 1,024 | |
| 212.4.133.0/24 | 212.4.133.0 | 212.4.133.255 | 256 | |
| 212.4.134.0/23 | 212.4.134.0 | 212.4.135.255 | 512 | |
| 212.4.136.0/22 | 212.4.136.0 | 212.4.139.255 | 1,024 | |
| 212.4.140.0/23 | 212.4.140.0 | 212.4.141.255 | 512 | |
| 212.4.144.0/20 | 212.4.144.0 | 212.4.159.255 | 4,096 | |
| 212.96.160.0/20 | 212.96.160.0 | 212.96.175.255 | 4,096 | |
| 212.96.176.0/22 | 212.96.176.0 | 212.96.179.255 | 1,024 | |
| 212.96.181.0/24 | 212.96.181.0 | 212.96.181.255 | 256 | |
| 212.96.182.0/23 | 212.96.182.0 | 212.96.183.255 | 512 | |
| 212.96.186.0/23 | 212.96.186.0 | 212.96.187.255 | 512 | |
| 212.96.188.0/22 | 212.96.188.0 | 212.96.191.255 | 1,024 | |
| 213.211.32.0/22 | 213.211.32.0 | 213.211.35.255 | 1,024 | |
| 213.211.38.0/23 | 213.211.38.0 | 213.211.39.255 | 512 | |
| 213.211.40.0/22 | 213.211.40.0 | 213.211.43.255 | 1,024 | |
| 213.211.48.0/20 | 213.211.48.0 | 213.211.63.255 | 4,096 |
| Netblock | From IP | To IP | Number of IPs | |
|---|---|---|---|---|
| 2001:4ba8::/29 | 2001:4ba8:: | 2001:4baf:ffff:ffff:ffff:ffff:ffff:ffff | 633.83 Octillion | |
| 2a0b:bb41::/32 | 2a0b:bb41:: | 2a0b:bb41:ffff:ffff:ffff:ffff:ffff:ffff | 79.23 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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