133.0.0.0/8
346 announced IP ranges across this /8. Select a /16 block below for its own breakdown and assigned ranges.
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 133.1.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.2.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.3.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.4.0.0/16 | Japan (100%) | 1 | 2 | 2 |
| 133.5.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.6.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.7.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.9.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.10.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.11.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.12.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.13.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.14.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.17.0.0/16 | Japan (100%) | 1 | 1 | 2 |
| 133.18.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.19.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.20.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.23.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.24.0.0/16 | Japan (100%) | 1 | 1 | 3 |
| 133.25.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.26.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.27.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.28.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.29.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.31.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.32.0.0/16 | Japan (100%) | 1 | 6 | 11 |
| 133.33.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.34.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.36.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.37.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.40.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.41.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.42.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.43.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.44.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.47.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.48.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.50.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.51.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.52.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.53.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.54.0.0/16 | Japan (100%) | 1 | 1 | 2 |
| 133.56.0.0/16 | Japan (100%) | 1 | 1 | 6 |
| 133.57.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.60.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.62.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.64.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.65.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.66.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.67.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.68.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.69.0.0/16 | Japan (100%) | 1 | 2 | 8 |
| 133.70.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.71.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.72.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.74.0.0/16 | Japan (100%) | 1 | 2 | 3 |
| 133.75.0.0/16 | Japan (100%) | 1 | 1 | 2 |
| 133.77.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.79.0.0/16 | Japan (100%) | 1 | 1 | 2 |
| 133.80.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.81.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.86.0.0/16 | Japan (100%) | 1 | 1 | 2 |
| 133.87.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.88.0.0/16 | Japan (100%) | 1 | 13 | 14 |
| 133.89.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.91.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.92.0.0/16 | Japan (100%) | 1 | 1 | 14 |
| 133.94.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.97.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.98.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.100.0.0/16 | Japan (100%) | 1 | 2 | 5 |
| 133.101.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.102.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.105.0.0/16 | Japan (100%) | 1 | 1 | 2 |
| 133.106.0.0/16 | Japan (100%) | 1 | 2 | 2 |
| 133.108.0.0/16 | Japan (100%) | 1 | 1 | 4 |
| 133.110.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.112.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.114.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.117.0.0/16 | Japan (100%) | 1 | 7 | 8 |
| 133.123.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.125.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.127.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.130.0.0/16 | Japan (100%) | 1 | 3 | 4 |
| 133.131.0.0/16 | Japan (100%) | 1 | 1 | 2 |
| 133.137.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.138.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.139.0.0/16 | Japan (100%) | 1 | 1 | 14 |
| 133.140.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.142.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.144.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.145.0.0/16 | Japan (100%) | 1 | 1 | 2 |
| 133.148.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.149.0.0/16 | Japan (100%) | 1 | 3 | 6 |
| 133.152.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.153.0.0/16 | Japan (100%) | 1 | 1 | 2 |
| 133.155.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.157.0.0/16 | Japan (50%) | 3 | 3 | 4 |
| 133.158.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.159.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.162.0.0/16 | Japan (100%) | 1 | 3 | 29 |
| 133.165.0.0/16 | Japan (100%) | 1 | 2 | 2 |
| 133.167.0.0/16 | Japan (100%) | 1 | 2 | 3 |
| 133.169.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.173.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.175.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.181.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.183.0.0/16 | Japan (100%) | 1 | 2 | 6 |
| 133.184.0.0/16 | Japan (100%) | 1 | 1 | 9 |
| 133.185.0.0/16 | Japan (100%) | 1 | 1 | 10 |
| 133.186.0.0/16 | South Korea (55%) | 2 | 4 | 11 |
| 133.187.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.188.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.192.0.0/16 | Japan (100%) | 1 | 1 | 4 |
| 133.194.0.0/16 | United States (50%) | 2 | 2 | 2 |
| 133.197.0.0/16 | United States (100%) | 1 | 1 | 1 |
| 133.200.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.215.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.217.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.218.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.220.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.221.0.0/16 | Japan (100%) | 1 | 1 | 2 |
| 133.223.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.225.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.226.0.0/16 | Japan (100%) | 1 | 11 | 16 |
| 133.232.0.0/16 | Japan (100%) | 1 | 2 | 3 |
| 133.236.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.237.0.0/16 | Japan (100%) | 1 | 1 | 2 |
| 133.238.0.0/16 | Japan (100%) | 1 | 2 | 3 |
| 133.240.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.242.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.243.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.245.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.247.0.0/16 | Japan (100%) | 1 | 11 | 16 |
| 133.249.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.250.0.0/16 | Japan (100%) | 1 | 2 | 5 |
| 133.253.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 133.254.0.0/16 | Japan (100%) | 1 | 1 | 1 |