103.21.0.0/16
81 assigned ranges in this /16.
/24 breakdown
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 103.21.0.0/24 | Australia (100%) | 1 | 1 | 1 |
| 103.21.4.0/24 | Australia (100%) | 1 | 1 | 1 |
| 103.21.6.0/24 | India (100%) | 1 | 1 | 1 |
| 103.21.8.0/24 | United States (100%) | 1 | 1 | 1 |
| 103.21.12.0/24 | Philippines (100%) | 1 | 1 | 1 |
| 103.21.17.0/24 | Australia (100%) | 1 | 1 | 1 |
| 103.21.18.0/24 | India (100%) | 1 | 1 | 1 |
| 103.21.20.0/24 | Australia (100%) | 1 | 1 | 1 |
| 103.21.24.0/24 | Thailand (100%) | 1 | 1 | 1 |
| 103.21.28.0/24 | United States (100%) | 1 | 1 | 1 |
| 103.21.31.0/24 | United States (100%) | 1 | 1 | 1 |
| 103.21.32.0/24 | Malaysia (100%) | 1 | 1 | 1 |
| 103.21.40.0/24 | Bangladesh (100%) | 1 | 1 | 1 |
| 103.21.48.0/24 | Australia (100%) | 1 | 1 | 1 |
| 103.21.50.0/24 | Australia (100%) | 1 | 1 | 1 |
| 103.21.51.0/24 | Australia (100%) | 1 | 1 | 1 |
| 103.21.52.0/24 | India (100%) | 1 | 1 | 1 |
| 103.21.53.0/24 | India (100%) | 1 | 1 | 1 |
| 103.21.56.0/24 | Singapore (100%) | 1 | 1 | 1 |
| 103.21.58.0/24 | United States (100%) | 1 | 1 | 1 |
| 103.21.60.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 103.21.64.0/24 | Indonesia (100%) | 1 | 1 | 1 |
| 103.21.67.0/24 | India (100%) | 1 | 1 | 1 |
| 103.21.68.0/24 | India (100%) | 1 | 1 | 1 |
| 103.21.70.0/24 | India (100%) | 1 | 1 | 1 |
| 103.21.76.0/24 | India (100%) | 1 | 1 | 1 |
| 103.21.80.0/24 | United States (100%) | 1 | 1 | 1 |
| 103.21.81.0/24 | United States (100%) | 1 | 1 | 1 |
| 103.21.82.0/24 | India (100%) | 1 | 1 | 1 |
| 103.21.84.0/24 | Indonesia (100%) | 1 | 1 | 1 |
| 103.21.88.0/24 | Malaysia (100%) | 1 | 1 | 1 |
| 103.21.92.0/24 | Indonesia (100%) | 1 | 1 | 1 |
| 103.21.96.0/24 | Vietnam (100%) | 1 | 1 | 1 |
| 103.21.100.0/24 | Vietnam (100%) | 1 | 1 | 1 |
| 103.21.108.0/24 | Australia (100%) | 1 | 1 | 1 |
| 103.21.116.0/24 | China (100%) | 1 | 1 | 1 |
| 103.21.120.0/24 | Vietnam (100%) | 1 | 1 | 1 |
| 103.21.124.0/24 | India (100%) | 1 | 1 | 1 |
| 103.21.128.0/24 | Australia (100%) | 1 | 1 | 1 |
| 103.21.132.0/24 | Australia (100%) | 1 | 1 | 1 |
| 103.21.136.0/24 | Hong Kong (100%) | 1 | 1 | 1 |
| 103.21.138.0/24 | United States (100%) | 1 | 1 | 1 |
| 103.21.139.0/24 | United States (100%) | 1 | 1 | 1 |
| 103.21.140.0/24 | China (100%) | 1 | 1 | 1 |
| 103.21.144.0/24 | Australia (100%) | 1 | 1 | 1 |
| 103.21.148.0/24 | Vietnam (100%) | 1 | 1 | 1 |
| 103.21.152.0/24 | Malaysia (100%) | 1 | 1 | 1 |
| 103.21.156.0/24 | Australia (100%) | 1 | 1 | 1 |
| 103.21.160.0/24 | India (100%) | 1 | 1 | 1 |
| 103.21.164.0/24 | Sri Lanka (100%) | 1 | 1 | 1 |
| 103.21.168.0/24 | Philippines (100%) | 1 | 1 | 1 |
| 103.21.171.0/24 | Philippines (100%) | 1 | 1 | 1 |
| 103.21.172.0/24 | New Zealand (100%) | 1 | 1 | 1 |
| 103.21.176.0/24 | China (100%) | 1 | 1 | 1 |
| 103.21.180.0/24 | Malaysia (100%) | 1 | 1 | 1 |
| 103.21.184.0/24 | India (100%) | 1 | 1 | 1 |
| 103.21.189.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 103.21.190.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 103.21.192.0/24 | Hong Kong (100%) | 1 | 1 | 1 |
| 103.21.193.0/24 | New Zealand (100%) | 1 | 1 | 1 |
| 103.21.194.0/24 | New Zealand (100%) | 1 | 1 | 1 |
| 103.21.195.0/24 | Indonesia (100%) | 1 | 1 | 1 |
| 103.21.198.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 103.21.200.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 103.21.203.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 103.21.204.0/24 | Indonesia (100%) | 1 | 1 | 1 |
| 103.21.208.0/24 | United States (100%) | 1 | 1 | 1 |
| 103.21.216.0/24 | Indonesia (100%) | 1 | 1 | 1 |
| 103.21.220.0/24 | Hong Kong (100%) | 1 | 1 | 1 |
| 103.21.221.0/24 | Singapore (100%) | 1 | 1 | 1 |
| 103.21.222.0/24 | Bangladesh (100%) | 1 | 1 | 1 |
| 103.21.228.0/24 | Indonesia (100%) | 1 | 1 | 1 |
| 103.21.229.0/24 | Indonesia (100%) | 1 | 1 | 1 |
| 103.21.230.0/24 | Solomon Islands (100%) | 1 | 1 | 1 |
| 103.21.232.0/24 | India (100%) | 1 | 1 | 1 |
| 103.21.236.0/24 | Germany (100%) | 1 | 1 | 1 |
| 103.21.240.0/24 | United States (100%) | 1 | 1 | 1 |
| 103.21.244.0/24 | United States (100%) | 1 | 1 | 1 |
| 103.21.246.0/24 | United States (100%) | 1 | 1 | 1 |
| 103.21.248.0/24 | Solomon Islands (100%) | 1 | 1 | 1 |
| 103.21.252.0/24 | Malaysia (100%) | 1 | 1 | 1 |
Assigned ranges
| Range | ASN | Org | Country |
|---|---|---|---|
103.21.0.0 – 103.21.3.255 | AS38195 | SUPERLOOP (AUSTRALIA) PTY LTD | AU |
103.21.4.0 – 103.21.5.255 | AS136000 | Lightning Broadband Pty Ltd | AU |
103.21.6.0 – 103.21.7.255 | AS150069 | CLOUDNET INTERNET SERVICE PVT LTD | IN |
103.21.8.0 – 103.21.11.255 | AS26658 | HT | US |
103.21.12.0 – 103.21.15.255 | AS9927 | PhilCom Corporation | PH |
103.21.17.0 – 103.21.17.255 | AS132448 | SolutionOne Pty Ltd | AU |
103.21.18.0 – 103.21.19.255 | AS58714 | CVENT INDIA PVT. LTD | IN |
103.21.20.0 – 103.21.23.255 | AS58713 | Fiber Vision Networks Pty Ltd | AU |
103.21.24.0 – 103.21.27.255 | AS38040 | TOT Public Company Limited | TH |
103.21.28.0 – 103.21.30.255 | AS54187 | EZE Castle Integration Inc. | US |
103.21.31.0 – 103.21.31.255 | AS54187 | EZE Castle Integration Inc. | US |
103.21.32.0 – 103.21.35.255 | AS132434 | Maxis Broadband Sdn Bhd | MY |
103.21.40.0 – 103.21.43.255 | AS58715 | Earth Telecommunication ( pvt ) Limited | BD |
103.21.48.0 – 103.21.49.255 | AS58750 | ThinkEx Holdings Pty Ltd | AU |
103.21.50.0 – 103.21.50.255 | AS7604 | Zettagrid Pty Ltd | AU |
66 more ranges in this block.