192.31.121.0/24
🇯🇵CIDR
192.31.121.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇯🇵 Japan
RIR
APNIC
Status
assigned
Allocated
8/21/1992
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 192.31.121.0/24 | AS2907SINET-AS - Research Organization of Information and Systems, National Institute of Informatics | No ROA | — | 6/1/2026 |
Origin ASN
AS2907
SINET-AS - Research Organization of Information and Systems, National Institute of Informatics
Geolocation
Country🇯🇵JapanJP
Coordinates36.2048, 138.2529 ↗
API
Open https://api.ipctl.io/v1/prefix/192.31.121.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/192.31.121.0/24" | jq
External Links