131.121.0.0/16
🇺🇸CIDR
131.121.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
RIR
ARIN
Status
allocated
Allocated
11/17/1988
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 131.121.0.0/16 | AS668DNIC-AS-00668 - United States Department of Defense (DoD) | No ROA | RADB | 6/1/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS668 | RADB | MAINT-AS668 | 11/13/2023 |
Geolocation
Country🇺🇸United StatesUS
Coordinates37.0902, -95.7129 ↗
API
Open https://api.ipctl.io/v1/prefix/131.121.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/131.121.0.0/16" | jq
External Links