Summary
| ASN | AS721 United States Department of Defense (DoD) |
| BGP | 140.21.0.0/16 |
| Registry | ARIN |
| Country | US |
| Status | assigned |
| IP Version | IPv4 |
| Allocated | 1990-04-08 |
| Last Updated | 2026-08-26 |
| 140.21.27.0/24 | N/A | 0 | 1 | 1 |
| 140.21.28.0/24 | N/A | 0 | 1 | 1 |
| 140.21.29.0/24 | N/A | 0 | 1 | 1 |
| 140.21.31.0/24 | N/A | 0 | 1 | 1 |
| 140.21.32.0/24 | N/A | 0 | 1 | 1 |
| 140.21.56.0/24 | N/A | 0 | 1 | 1 |
| 140.21.57.0/24 | N/A | 0 | 1 | 1 |
| 140.21.58.0/24 | N/A | 0 | 1 | 1 |
| 140.21.60.0/24 | N/A | 0 | 1 | 1 |
| 140.21.64.0/24 | N/A | 0 | 1 | 1 |
| 140.21.99.0/24 | N/A | 0 | 1 | 1 |
| 140.21.112.0/24 | N/A | 0 | 1 | 1 |
| 140.21.116.0/24 | N/A | 0 | 1 | 1 |
| 140.21.120.0/24 | N/A | 0 | 1 | 1 |
| 140.21.124.0/24 | N/A | 0 | 1 | 1 |
| 140.21.126.0/24 | N/A | 0 | 1 | 1 |
| 140.21.127.0/24 | N/A | 0 | 1 | 1 |
| 140.21.128.0/24 | N/A | 0 | 1 | 1 |
| 140.21.132.0/24 | N/A | 0 | 1 | 1 |
| 140.21.136.0/24 | N/A | 0 | 1 | 1 |
| 140.21.140.0/24 | N/A | 0 | 1 | 1 |
| 140.21.144.0/24 | N/A | 0 | 1 | 1 |
| 140.21.148.0/24 | N/A | 0 | 1 | 1 |
| 140.21.152.0/24 | N/A | 0 | 1 | 1 |
| 140.21.156.0/24 | N/A | 0 | 1 | 1 |
| 140.21.160.0/24 | N/A | 0 | 1 | 1 |
| 140.21.164.0/24 | N/A | 0 | 1 | 1 |
| 140.21.168.0/24 | N/A | 0 | 1 | 1 |
| 140.21.172.0/24 | N/A | 0 | 1 | 1 |
| 140.21.176.0/24 | N/A | 0 | 1 | 1 |
| 140.21.180.0/24 | N/A | 0 | 1 | 1 |
| 140.21.184.0/24 | N/A | 0 | 1 | 1 |
| 140.21.188.0/24 | N/A | 0 | 1 | 1 |
| 140.21.192.0/24 | N/A | 0 | 1 | 1 |
| 140.21.196.0/24 | N/A | 0 | 1 | 1 |
| 140.21.200.0/24 | N/A | 0 | 1 | 1 |
| 140.21.204.0/24 | N/A | 0 | 1 | 1 |