192.138.24.0/21 - United States Department Of Defense DoD (AS721)
CIDR
192.138.24.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Dallas
RIR
ARIN
Status
allocated
Allocated
1996-04-01
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 192.138.24.0/21 | AS721 DNIC-ASBLK-00721-00726 - United States Department of Defense DoD | No ROA | - | 2026-10-11 |
More-Specific Announcements
4 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 192.138.24.0/24 | AS5972 DNIC-ASBLK-05800-06055 - United States Department of Defense DoD | No ROA | - | 2026-10-11 |
| 192.138.26.0/23 | AS5972 DNIC-ASBLK-05800-06055 - United States Department of Defense DoD | No ROA | - | 2026-10-11 |
| 192.138.30.0/24 | AS5972 DNIC-ASBLK-05800-06055 - United States Department of Defense DoD | No ROA | - | 2026-10-11 |
| 192.138.31.0/24 | AS5972 DNIC-ASBLK-05800-06055 - United States Department of Defense DoD | No ROA | - | 2026-10-11 |
Related Prefixes
Geolocation
Learn more
- RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
- RPKI validatorCheck ROA coverage for any prefix or ASN
- What is BGP?How prefixes are announced and routed
- More-specific prefixesGlossary: covering and more-specific routes
- IPv4 transfers in the ARIN regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/192.138.24.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/192.138.24.0/21" | jq
External Links