123.0.0.0/8
1,101 announced IP ranges across this /8. Select a /16 block below for its own breakdown and assigned ranges.
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 123.0.0.0/16 | Bangladesh (63%) | 3 | 7 | 8 |
| 123.1.0.0/16 | Hong Kong (97%) | 2 | 4 | 32 |
| 123.2.0.0/16 | Germany (100%) | 1 | 1 | 1 |
| 123.4.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.7.0.0/16 | China (100%) | 1 | 1 | 4 |
| 123.13.0.0/16 | China (100%) | 1 | 1 | 3 |
| 123.15.0.0/16 | China (100%) | 1 | 1 | 2 |
| 123.16.0.0/16 | Vietnam (100%) | 1 | 1 | 2 |
| 123.21.0.0/16 | Vietnam (100%) | 1 | 1 | 3 |
| 123.22.0.0/16 | Vietnam (100%) | 1 | 1 | 1 |
| 123.23.0.0/16 | Vietnam (100%) | 1 | 1 | 1 |
| 123.25.0.0/16 | Vietnam (100%) | 1 | 1 | 5 |
| 123.26.0.0/16 | Vietnam (100%) | 1 | 1 | 2 |
| 123.27.0.0/16 | Vietnam (100%) | 1 | 1 | 1 |
| 123.28.0.0/16 | Vietnam (100%) | 1 | 1 | 1 |
| 123.29.0.0/16 | Vietnam (100%) | 1 | 1 | 4 |
| 123.30.0.0/16 | Vietnam (100%) | 1 | 3 | 49 |
| 123.31.0.0/16 | Vietnam (100%) | 1 | 2 | 8 |
| 123.32.0.0/16 | South Korea (100%) | 1 | 2 | 2 |
| 123.37.0.0/16 | South Korea (100%) | 1 | 1 | 1 |
| 123.41.0.0/16 | South Korea (100%) | 1 | 2 | 4 |
| 123.48.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 123.49.0.0/16 | Bangladesh (60%) | 3 | 7 | 20 |
| 123.50.0.0/16 | Australia (40%) | 4 | 7 | 10 |
| 123.51.0.0/16 | Taiwan (82%) | 2 | 3 | 62 |
| 123.52.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.56.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.58.0.0/16 | China (85%) | 3 | 8 | 20 |
| 123.59.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.60.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.63.0.0/16 | India (100%) | 1 | 1 | 9 |
| 123.64.0.0/16 | China (100%) | 1 | 1 | 2 |
| 123.66.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.77.0.0/16 | China (100%) | 1 | 2 | 9 |
| 123.88.0.0/16 | China (100%) | 1 | 2 | 27 |
| 123.96.0.0/16 | China (100%) | 1 | 2 | 3 |
| 123.98.0.0/16 | South Korea (50%) | 2 | 4 | 4 |
| 123.99.0.0/16 | South Korea (75%) | 3 | 3 | 8 |
| 123.100.0.0/16 | Australia (41%) | 9 | 15 | 27 |
| 123.101.0.0/16 | China (100%) | 1 | 2 | 4 |
| 123.103.0.0/16 | China (64%) | 4 | 5 | 14 |
| 123.104.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 123.108.0.0/16 | South Korea (15%) | 13 | 33 | 41 |
| 123.109.0.0/16 | South Korea (100%) | 1 | 5 | 8 |
| 123.110.0.0/16 | Taiwan (100%) | 1 | 1 | 1 |
| 123.111.0.0/16 | South Korea (100%) | 1 | 2 | 7 |
| 123.112.0.0/16 | China (100%) | 1 | 1 | 2 |
| 123.117.0.0/16 | China (100%) | 1 | 2 | 4 |
| 123.121.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.125.0.0/16 | China (100%) | 1 | 2 | 4 |
| 123.126.0.0/16 | China (100%) | 1 | 2 | 3 |
| 123.128.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.129.0.0/16 | China (100%) | 1 | 1 | 2 |
| 123.132.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.136.0.0/16 | India (49%) | 7 | 11 | 39 |
| 123.138.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.139.0.0/16 | China (100%) | 1 | 1 | 3 |
| 123.140.0.0/16 | South Korea (100%) | 1 | 9 | 19 |
| 123.141.0.0/16 | South Korea (100%) | 1 | 4 | 6 |
| 123.144.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.149.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.150.0.0/16 | China (100%) | 1 | 3 | 29 |
| 123.151.0.0/16 | China (100%) | 1 | 4 | 35 |
| 123.152.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.157.0.0/16 | China (100%) | 1 | 1 | 3 |
| 123.160.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.166.0.0/16 | China (100%) | 1 | 2 | 2 |
| 123.167.0.0/16 | China (100%) | 1 | 3 | 7 |
| 123.168.0.0/16 | China (100%) | 1 | 2 | 2 |
| 123.172.0.0/16 | China (100%) | 1 | 2 | 2 |
| 123.176.0.0/16 | India (33%) | 9 | 14 | 21 |
| 123.177.0.0/16 | China (100%) | 1 | 3 | 4 |
| 123.178.0.0/16 | China (100%) | 1 | 2 | 3 |
| 123.184.0.0/16 | China (100%) | 1 | 2 | 2 |
| 123.185.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.186.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.188.0.0/16 | China (100%) | 1 | 1 | 2 |
| 123.189.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.192.0.0/16 | Taiwan (100%) | 1 | 1 | 3 |
| 123.193.0.0/16 | Taiwan (100%) | 1 | 1 | 5 |
| 123.194.0.0/16 | Taiwan (100%) | 1 | 1 | 4 |
| 123.195.0.0/16 | Taiwan (100%) | 1 | 1 | 4 |
| 123.196.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.198.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 123.199.0.0/16 | South Korea (100%) | 1 | 1 | 1 |
| 123.200.0.0/16 | Australia (59%) | 6 | 9 | 27 |
| 123.201.0.0/16 | India (100%) | 1 | 1 | 51 |
| 123.202.0.0/16 | Hong Kong (100%) | 1 | 1 | 1 |
| 123.204.0.0/16 | Taiwan (100%) | 1 | 1 | 26 |
| 123.205.0.0/16 | Taiwan (100%) | 1 | 4 | 24 |
| 123.206.0.0/16 | China (100%) | 1 | 1 | 2 |
| 123.208.0.0/16 | Australia (100%) | 1 | 1 | 13 |
| 123.209.0.0/16 | Australia (100%) | 1 | 1 | 1 |
| 123.212.0.0/16 | South Korea (100%) | 1 | 2 | 3 |
| 123.214.0.0/16 | South Korea (100%) | 1 | 4 | 6 |
| 123.215.0.0/16 | South Korea (100%) | 1 | 2 | 2 |
| 123.216.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 123.228.0.0/16 | South Korea (100%) | 1 | 1 | 1 |
| 123.230.0.0/16 | Japan (100%) | 1 | 1 | 1 |
| 123.231.0.0/16 | Indonesia (58%) | 2 | 3 | 12 |
| 123.232.0.0/16 | China (100%) | 1 | 1 | 2 |
| 123.234.0.0/16 | China (100%) | 1 | 1 | 5 |
| 123.235.0.0/16 | China (100%) | 1 | 2 | 3 |
| 123.240.0.0/16 | Taiwan (100%) | 1 | 1 | 10 |
| 123.241.0.0/16 | Taiwan (100%) | 1 | 1 | 5 |
| 123.242.0.0/16 | India (38%) | 5 | 8 | 13 |
| 123.243.0.0/16 | Australia (100%) | 1 | 2 | 87 |
| 123.244.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.246.0.0/16 | China (100%) | 1 | 2 | 2 |
| 123.248.0.0/16 | South Korea (100%) | 1 | 1 | 1 |
| 123.249.0.0/16 | China (100%) | 1 | 1 | 1 |
| 123.252.0.0/16 | India (98%) | 2 | 3 | 54 |
| 123.253.0.0/16 | Bangladesh (17%) | 21 | 71 | 83 |
| 123.254.0.0/16 | South Korea (43%) | 5 | 6 | 7 |
| 123.255.0.0/16 | Japan (29%) | 7 | 11 | 14 |