2401:5e40::/33
🇯🇵CIDR
2401:5e40::/33
IP Version
IPv6
Addresses
39614Y
Mask
/33
Country
🇯🇵 Japan
City
Chiyoda
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 2401:5e40::/33 | AS63770ICSCOE-AS - Industrial Cyber Security Center of Excellence | No ROA | — | 5/30/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 2401:5e40:1000::/36 | AS63770ICSCOE-AS - Industrial Cyber Security Center of Excellence | No ROA | — | 5/30/2026 |
| 2401:5e40:10ff::/48 | AS63770ICSCOE-AS - Industrial Cyber Security Center of Excellence | No ROA | — | 5/30/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/2401:5e40::/33Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/2401:5e40::/33" | jq
External Links