128.231.0.0/16
3 assigned ranges in this /16.
/24 breakdown
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 128.231.0.0/24 | United States (100%) | 1 | 1 | 1 |
| 128.231.4.0/24 | United States (100%) | 1 | 1 | 1 |
| 128.231.246.0/24 | United States (100%) | 1 | 1 | 1 |
Assigned ranges
| Range | ASN | Org | Country |
|---|---|---|---|
128.231.0.0 – 128.231.3.255 | AS3527 | National Institutes of Health | US |
128.231.4.0 – 128.231.245.255 | AS3527 | National Institutes of Health | US |
128.231.246.0 – 128.231.255.255 | AS3527 | National Institutes of Health | US |