199.9.240.0/21
🇺🇸CIDR
199.9.240.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Columbus
RIR
ARIN
Status
allocated
Allocated
3/4/1994
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 199.9.240.0/21 | AS518DNIC-AS-00518 - United States Department of Defense (DoD) | No ROA | RADB | 5/31/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 199.9.247.0/24 | AS518DNIC-AS-00518 - United States Department of Defense (DoD) | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS518 | RADB | MAINT-AS668 | 11/13/2023 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/199.9.240.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/199.9.240.0/21" | jq
External Links