Summary
| ASN | AS3527 National Institutes of Health |
| BGP | 128.231.0.0/16 |
| Registry | ARIN |
| Country | US |
| Status | assigned |
| IP Version | IPv4 |
| Allocated | 1987-05-06 |
| Last Updated | 2026-08-26 |
| 128.231.3.0/24 | N/A | 0 | 1 | 1 |
| 128.231.245.0/24 | N/A | 0 | 1 | 1 |
| ASN | AS3527 National Institutes of Health |
| BGP | 128.231.0.0/16 |
| Registry | ARIN |
| Country | US |
| Status | assigned |
| IP Version | IPv4 |
| Allocated | 1987-05-06 |
| Last Updated | 2026-08-26 |
| 128.231.3.0/24 | N/A | 0 | 1 | 1 |
| 128.231.245.0/24 | N/A | 0 | 1 | 1 |