199.252.128.0/18 - United States Department Of Defense DoD (AS721)
CIDR
199.252.128.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇺🇸 United States
City
Columbus
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 199.252.128.0/18 | AS721 DNIC-ASBLK-00721-00726 - United States Department of Defense DoD | No ROA | - | 2026-10-11 |
More-Specific Announcements
6 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 199.252.143.0/24 | AS721 DNIC-ASBLK-00721-00726 - United States Department of Defense DoD | No ROA | - | 2026-10-11 |
| 199.252.154.0/24 | AS721 DNIC-ASBLK-00721-00726 - United States Department of Defense DoD | No ROA | - | 2026-10-11 |
| 199.252.155.0/24 | AS721 DNIC-ASBLK-00721-00726 - United States Department of Defense DoD | No ROA | - | 2026-10-11 |
| 199.252.157.0/24 | AS721 DNIC-ASBLK-00721-00726 - United States Department of Defense DoD | No ROA | - | 2026-10-11 |
| 199.252.162.0/24 | AS721 DNIC-ASBLK-00721-00726 - United States Department of Defense DoD | No ROA | - | 2026-10-11 |
| 199.252.180.0/24 | AS721 DNIC-ASBLK-00721-00726 - 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/199.252.128.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/199.252.128.0/18" | jq
External Links