Summary
| ASN | AS721 United States Department of Defense (DoD) |
| BGP | 143.81.0.0/16 |
| Registry | ARIN |
| Country | US |
| Status | assigned |
| IP Version | IPv4 |
| Allocated | 1990-03-26 |
| Last Updated | 2026-08-26 |
| 143.81.0.0/24 | N/A | 0 | 2 | 2 |
| 143.81.4.0/24 | N/A | 0 | 1 | 1 |
| 143.81.8.0/24 | N/A | 0 | 1 | 1 |
| 143.81.16.0/24 | N/A | 0 | 1 | 1 |
| 143.81.18.0/24 | N/A | 0 | 1 | 1 |
| 143.81.23.0/24 | N/A | 0 | 1 | 1 |
| 143.81.25.0/24 | N/A | 0 | 1 | 1 |
| 143.81.29.0/24 | N/A | 0 | 1 | 1 |
| 143.81.31.0/24 | N/A | 0 | 1 | 1 |
| 143.81.32.0/24 | N/A | 0 | 1 | 1 |
| 143.81.36.0/24 | N/A | 0 | 1 | 1 |
| 143.81.48.0/24 | N/A | 0 | 1 | 1 |
| 143.81.49.0/24 | N/A | 0 | 1 | 1 |
| 143.81.50.0/24 | N/A | 0 | 1 | 1 |
| 143.81.51.0/24 | N/A | 0 | 1 | 1 |
| 143.81.52.0/24 | N/A | 0 | 1 | 1 |
| 143.81.53.0/24 | N/A | 0 | 1 | 1 |
| 143.81.54.0/24 | N/A | 0 | 1 | 1 |
| 143.81.56.0/24 | N/A | 0 | 1 | 1 |
| 143.81.58.0/24 | N/A | 0 | 1 | 1 |
| 143.81.59.0/24 | N/A | 0 | 1 | 1 |
| 143.81.61.0/24 | N/A | 0 | 1 | 1 |
| 143.81.62.0/24 | N/A | 0 | 1 | 1 |
| 143.81.72.0/24 | N/A | 0 | 1 | 1 |
| 143.81.90.0/24 | N/A | 0 | 1 | 1 |
| 143.81.103.0/24 | N/A | 0 | 1 | 1 |
| 143.81.105.0/24 | N/A | 0 | 1 | 1 |
| 143.81.106.0/24 | N/A | 0 | 1 | 1 |
| 143.81.112.0/24 | N/A | 0 | 1 | 1 |
| 143.81.128.0/24 | N/A | 0 | 1 | 1 |
| 143.81.156.0/24 | N/A | 0 | 1 | 1 |
| 143.81.157.0/24 | N/A | 0 | 1 | 1 |
| 143.81.192.0/24 | N/A | 0 | 1 | 1 |
| 143.81.200.0/24 | N/A | 0 | 1 | 1 |
| 143.81.201.0/24 | N/A | 0 | 1 | 1 |
| 143.81.220.0/24 | N/A | 0 | 1 | 1 |
| 143.81.222.0/24 | N/A | 0 | 1 | 1 |
| 143.81.223.0/24 | N/A | 0 | 1 | 1 |
| 143.81.224.0/24 | N/A | 0 | 1 | 1 |