AS51561 ICUK Computing Services Limited
General Info - AS51561
73,472
79.23 Octillion
IP Address Ranges
| Netblock | From IP | To IP | Number of IPs | |
|---|---|---|---|---|
| 2.56.84.0/22 | 2.56.84.0 | 2.56.87.255 | 1,024 | |
| 5.133.168.0/23 | 5.133.168.0 | 5.133.169.255 | 512 | |
| 5.133.170.0/23 | 5.133.170.0 | 5.133.171.255 | 512 | |
| 5.254.162.0/23 | 5.254.162.0 | 5.254.163.255 | 512 | |
| 5.254.164.0/23 | 5.254.164.0 | 5.254.165.255 | 512 | |
| 37.235.43.0/24 | 37.235.43.0 | 37.235.43.255 | 256 | |
| 45.93.112.0/23 | 45.93.112.0 | 45.93.113.255 | 512 | |
| 45.93.114.0/23 | 45.93.114.0 | 45.93.115.255 | 512 | |
| 45.145.86.0/23 | 45.145.86.0 | 45.145.87.255 | 512 | |
| 46.33.128.0/24 | 46.33.128.0 | 46.33.128.255 | 256 | |
| 46.33.129.0/24 | 46.33.129.0 | 46.33.129.255 | 256 | |
| 46.33.130.0/24 | 46.33.130.0 | 46.33.130.255 | 256 | |
| 46.33.131.0/24 | 46.33.131.0 | 46.33.131.255 | 256 | |
| 46.33.132.0/22 | 46.33.132.0 | 46.33.135.255 | 1,024 | |
| 46.33.136.0/21 | 46.33.136.0 | 46.33.143.255 | 2,048 | |
| 46.33.144.0/21 | 46.33.144.0 | 46.33.151.255 | 2,048 | |
| 46.33.152.0/22 | 46.33.152.0 | 46.33.155.255 | 1,024 | |
| 46.33.156.0/24 | 46.33.156.0 | 46.33.156.255 | 256 | |
| 46.33.157.0/24 | 46.33.157.0 | 46.33.157.255 | 256 | |
| 46.33.158.0/23 | 46.33.158.0 | 46.33.159.255 | 512 | |
| 46.102.192.0/24 | 46.102.192.0 | 46.102.192.255 | 256 | |
| 46.102.193.0/24 | 46.102.193.0 | 46.102.193.255 | 256 | |
| 46.102.194.0/23 | 46.102.194.0 | 46.102.195.255 | 512 | |
| 46.102.196.0/22 | 46.102.196.0 | 46.102.199.255 | 1,024 | |
| 46.102.200.0/21 | 46.102.200.0 | 46.102.207.255 | 2,048 | |
| 46.102.208.0/20 | 46.102.208.0 | 46.102.223.255 | 4,096 | |
| 46.226.120.0/24 | 46.226.120.0 | 46.226.120.255 | 256 | |
| 80.95.192.0/20 | 80.95.192.0 | 80.95.207.255 | 4,096 | |
| 80.209.128.0/24 | 80.209.128.0 | 80.209.128.255 | 256 | |
| 80.209.129.0/24 | 80.209.129.0 | 80.209.129.255 | 256 | |
| 80.209.130.0/23 | 80.209.130.0 | 80.209.131.255 | 512 | |
| 80.209.132.0/22 | 80.209.132.0 | 80.209.135.255 | 1,024 | |
| 80.209.136.0/21 | 80.209.136.0 | 80.209.143.255 | 2,048 | |
| 80.209.144.0/21 | 80.209.144.0 | 80.209.151.255 | 2,048 | |
| 80.209.152.0/23 | 80.209.152.0 | 80.209.153.255 | 512 | |
| 80.209.154.0/24 | 80.209.154.0 | 80.209.154.255 | 256 | |
| 80.209.155.0/24 | 80.209.155.0 | 80.209.155.255 | 256 | |
| 80.209.156.0/23 | 80.209.156.0 | 80.209.157.255 | 512 | |
| 80.209.158.0/24 | 80.209.158.0 | 80.209.158.255 | 256 | |
| 80.209.159.0/24 | 80.209.159.0 | 80.209.159.255 | 256 | |
| 80.209.160.0/20 | 80.209.160.0 | 80.209.175.255 | 4,096 | |
| 80.209.176.0/21 | 80.209.176.0 | 80.209.183.255 | 2,048 | |
| 80.209.184.0/22 | 80.209.184.0 | 80.209.187.255 | 1,024 | |
| 80.209.188.0/23 | 80.209.188.0 | 80.209.189.255 | 512 | |
| 80.209.190.0/23 | 80.209.190.0 | 80.209.191.255 | 512 | |
| 80.247.216.0/24 | 80.247.216.0 | 80.247.216.255 | 256 | |
| 82.39.142.0/24 | 82.39.142.0 | 82.39.142.255 | 256 | |
| 89.107.24.0/22 | 89.107.24.0 | 89.107.27.255 | 1,024 | |
| 91.233.33.0/24 | 91.233.33.0 | 91.233.33.255 | 256 | |
| 138.124.128.0/24 | 138.124.128.0 | 138.124.128.255 | 256 | |
| 138.124.129.0/24 | 138.124.129.0 | 138.124.129.255 | 256 | |
| 138.124.130.0/23 | 138.124.130.0 | 138.124.131.255 | 512 | |
| 138.124.132.0/23 | 138.124.132.0 | 138.124.133.255 | 512 | |
| 138.124.134.0/24 | 138.124.134.0 | 138.124.134.255 | 256 | |
| 138.124.135.0/24 | 138.124.135.0 | 138.124.135.255 | 256 | |
| 138.124.136.0/24 | 138.124.136.0 | 138.124.136.255 | 256 | |
| 138.124.137.0/24 | 138.124.137.0 | 138.124.137.255 | 256 | |
| 138.124.138.0/24 | 138.124.138.0 | 138.124.138.255 | 256 | |
| 138.124.139.0/24 | 138.124.139.0 | 138.124.139.255 | 256 | |
| 138.124.140.0/23 | 138.124.140.0 | 138.124.141.255 | 512 | |
| 138.124.142.0/24 | 138.124.142.0 | 138.124.142.255 | 256 | |
| 138.124.143.0/24 | 138.124.143.0 | 138.124.143.255 | 256 | |
| 181.215.32.0/24 | 181.215.32.0 | 181.215.32.255 | 256 | |
| 185.2.236.0/22 | 185.2.236.0 | 185.2.239.255 | 1,024 | |
| 185.32.55.0/24 | 185.32.55.0 | 185.32.55.255 | 256 | |
| 185.35.148.0/24 | 185.35.148.0 | 185.35.148.255 | 256 | |
| 185.35.149.0/24 | 185.35.149.0 | 185.35.149.255 | 256 | |
| 185.35.150.0/24 | 185.35.150.0 | 185.35.150.255 | 256 | |
| 185.35.151.0/24 | 185.35.151.0 | 185.35.151.255 | 256 | |
| 185.132.52.0/24 | 185.132.52.0 | 185.132.52.255 | 256 | |
| 185.137.240.0/24 | 185.137.240.0 | 185.137.240.255 | 256 | |
| 185.137.241.0/24 | 185.137.241.0 | 185.137.241.255 | 256 | |
| 185.140.16.0/23 | 185.140.16.0 | 185.140.17.255 | 512 | |
| 185.140.18.0/23 | 185.140.18.0 | 185.140.19.255 | 512 | |
| 185.145.152.0/24 | 185.145.152.0 | 185.145.152.255 | 256 | |
| 185.145.153.0/24 | 185.145.153.0 | 185.145.153.255 | 256 | |
| 185.145.154.0/23 | 185.145.154.0 | 185.145.155.255 | 512 | |
| 185.152.2.0/24 | 185.152.2.0 | 185.152.2.255 | 256 | |
| 185.168.10.0/24 | 185.168.10.0 | 185.168.10.255 | 256 | |
| 185.201.208.0/22 | 185.201.208.0 | 185.201.211.255 | 1,024 | |
| 185.234.255.0/24 | 185.234.255.0 | 185.234.255.255 | 256 | |
| 185.243.62.0/24 | 185.243.62.0 | 185.243.62.255 | 256 | |
| 185.243.63.0/24 | 185.243.63.0 | 185.243.63.255 | 256 | |
| 185.253.88.0/24 | 185.253.88.0 | 185.253.88.255 | 256 | |
| 188.211.249.0/24 | 188.211.249.0 | 188.211.249.255 | 256 | |
| 188.240.160.0/24 | 188.240.160.0 | 188.240.160.255 | 256 | |
| 188.240.161.0/24 | 188.240.161.0 | 188.240.161.255 | 256 | |
| 188.240.162.0/23 | 188.240.162.0 | 188.240.163.255 | 512 | |
| 188.240.164.0/22 | 188.240.164.0 | 188.240.167.255 | 1,024 | |
| 188.240.168.0/22 | 188.240.168.0 | 188.240.171.255 | 1,024 | |
| 188.240.172.0/24 | 188.240.172.0 | 188.240.172.255 | 256 | |
| 188.240.173.0/24 | 188.240.173.0 | 188.240.173.255 | 256 | |
| 188.240.174.0/23 | 188.240.174.0 | 188.240.175.255 | 512 | |
| 188.240.176.0/21 | 188.240.176.0 | 188.240.183.255 | 2,048 | |
| 188.240.184.0/22 | 188.240.184.0 | 188.240.187.255 | 1,024 | |
| 188.240.188.0/23 | 188.240.188.0 | 188.240.189.255 | 512 | |
| 188.240.190.0/24 | 188.240.190.0 | 188.240.190.255 | 256 | |
| 188.240.191.0/24 | 188.240.191.0 | 188.240.191.255 | 256 | |
| 193.161.9.0/24 | 193.161.9.0 | 193.161.9.255 | 256 | |
| 193.161.10.0/24 | 193.161.10.0 | 193.161.10.255 | 256 | |
| 193.187.0.0/24 | 193.187.0.0 | 193.187.0.255 | 256 | |
| 205.157.160.0/24 | 205.157.160.0 | 205.157.160.255 | 256 | |
| 205.157.161.0/24 | 205.157.161.0 | 205.157.161.255 | 256 | |
| 205.157.162.0/23 | 205.157.162.0 | 205.157.163.255 | 512 | |
| 205.157.164.0/22 | 205.157.164.0 | 205.157.167.255 | 1,024 | |
| 205.157.168.0/21 | 205.157.168.0 | 205.157.175.255 | 2,048 | |
| 205.157.176.0/20 | 205.157.176.0 | 205.157.191.255 | 4,096 | |
| 217.22.12.0/24 | 217.22.12.0 | 217.22.12.255 | 256 |
| Netblock | From IP | To IP | Number of IPs | |
|---|---|---|---|---|
| 2a00:b900::/47 | 2a00:b900:: | 2a00:b900:1:ffff:ffff:ffff:ffff:ffff | 2.42 Septillion | |
| 2a00:b900:2::/48 | 2a00:b900:2:: | 2a00:b900:2:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2a00:b900:3::/48 | 2a00:b900:3:: | 2a00:b900:3:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2a00:b900:4::/46 | 2a00:b900:4:: | 2a00:b900:7:ffff:ffff:ffff:ffff:ffff | 4.84 Septillion | |
| 2a00:b900:8::/45 | 2a00:b900:8:: | 2a00:b900:f:ffff:ffff:ffff:ffff:ffff | 9.67 Septillion | |
| 2a00:b900:10::/44 | 2a00:b900:10:: | 2a00:b900:1f:ffff:ffff:ffff:ffff:ffff | 19.34 Septillion | |
| 2a00:b900:20::/43 | 2a00:b900:20:: | 2a00:b900:3f:ffff:ffff:ffff:ffff:ffff | 38.69 Septillion | |
| 2a00:b900:40::/42 | 2a00:b900:40:: | 2a00:b900:7f:ffff:ffff:ffff:ffff:ffff | 77.37 Septillion | |
| 2a00:b900:80::/41 | 2a00:b900:80:: | 2a00:b900:ff:ffff:ffff:ffff:ffff:ffff | 154.74 Septillion | |
| 2a00:b900:100::/40 | 2a00:b900:100:: | 2a00:b900:1ff:ffff:ffff:ffff:ffff:ffff | 309.49 Septillion | |
| 2a00:b900:200::/39 | 2a00:b900:200:: | 2a00:b900:3ff:ffff:ffff:ffff:ffff:ffff | 618.97 Septillion | |
| 2a00:b900:400::/38 | 2a00:b900:400:: | 2a00:b900:7ff:ffff:ffff:ffff:ffff:ffff | 1.24 Octillion | |
| 2a00:b900:800::/37 | 2a00:b900:800:: | 2a00:b900:fff:ffff:ffff:ffff:ffff:ffff | 2.48 Octillion | |
| 2a00:b900:1000::/36 | 2a00:b900:1000:: | 2a00:b900:1fff:ffff:ffff:ffff:ffff:ffff | 4.95 Octillion | |
| 2a00:b900:2000::/35 | 2a00:b900:2000:: | 2a00:b900:3fff:ffff:ffff:ffff:ffff:ffff | 9.90 Octillion | |
| 2a00:b900:4000::/34 | 2a00:b900:4000:: | 2a00:b900:7fff:ffff:ffff:ffff:ffff:ffff | 19.81 Octillion | |
| 2a00:b900:8000::/33 | 2a00:b900:8000:: | 2a00:b900:ffff:ffff:ffff:ffff:ffff:ffff | 39.61 Octillion |
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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