155.21.0.0/16
19 assigned ranges in this /16.
/24 breakdown
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 155.21.16.0/24 | United States (100%) | 1 | 1 | 1 |
| 155.21.20.0/24 | United States (100%) | 1 | 1 | 1 |
| 155.21.130.0/24 | United States (100%) | 1 | 1 | 1 |
| 155.21.132.0/24 | United States (100%) | 1 | 1 | 1 |
| 155.21.148.0/24 | United States (100%) | 1 | 1 | 1 |
| 155.21.150.0/24 | United States (100%) | 1 | 1 | 1 |
| 155.21.152.0/24 | United States (100%) | 1 | 1 | 1 |
| 155.21.154.0/24 | United States (100%) | 1 | 1 | 1 |
| 155.21.164.0/24 | United States (100%) | 1 | 1 | 1 |
| 155.21.166.0/24 | United States (100%) | 1 | 1 | 1 |
| 155.21.168.0/24 | United States (100%) | 1 | 1 | 1 |
| 155.21.176.0/24 | United States (100%) | 1 | 1 | 1 |
| 155.21.178.0/24 | United States (100%) | 1 | 1 | 1 |
| 155.21.179.0/24 | United States (100%) | 1 | 1 | 1 |
| 155.21.184.0/24 | United States (100%) | 1 | 1 | 1 |
| 155.21.186.0/24 | United States (100%) | 1 | 1 | 1 |
| 155.21.190.0/24 | United States (100%) | 1 | 1 | 1 |
| 155.21.192.0/24 | United States (100%) | 1 | 1 | 1 |
| 155.21.224.0/24 | United States (100%) | 1 | 1 | 1 |
Assigned ranges
| Range | ASN | Org | Country |
|---|---|---|---|
155.21.16.0 – 155.21.19.255 | AS1540 | Headquarters USAISC | US |
155.21.20.0 – 155.21.129.255 | AS749 | United States Department of Defense (DoD) | US |
155.21.130.0 – 155.21.131.255 | AS1540 | Headquarters USAISC | US |
155.21.132.0 – 155.21.147.255 | AS749 | United States Department of Defense (DoD) | US |
155.21.148.0 – 155.21.149.255 | AS367 | United States Department of Defense (DoD) | US |
155.21.150.0 – 155.21.151.255 | AS749 | United States Department of Defense (DoD) | US |
155.21.152.0 – 155.21.153.255 | AS1540 | Headquarters USAISC | US |
155.21.154.0 – 155.21.159.255 | AS749 | United States Department of Defense (DoD) | US |
155.21.164.0 – 155.21.165.255 | AS1540 | Headquarters USAISC | US |
155.21.166.0 – 155.21.167.255 | AS749 | United States Department of Defense (DoD) | US |
155.21.168.0 – 155.21.175.255 | AS1540 | Headquarters USAISC | US |
155.21.176.0 – 155.21.176.255 | AS749 | United States Department of Defense (DoD) | US |
155.21.178.0 – 155.21.178.255 | AS1540 | Headquarters USAISC | US |
155.21.179.0 – 155.21.179.255 | AS749 | United States Department of Defense (DoD) | US |
155.21.184.0 – 155.21.185.255 | AS749 | United States Department of Defense (DoD) | US |
4 more ranges in this block.