2401:5e40:8000::/33
🇯🇵CIDR
2401:5e40:8000::/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 |
|---|---|---|---|---|
| 2401:5e40:8000::/33 | AS63770ICSCOE-AS - Industrial Cyber Security Center of Excellence | No ROA | — | 5/31/2026 |
Covering Prefix
5 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 2401:5e40:c600::/39 | AS63798IPA-ENTERNET - Industrial Cyber Security Center of Excellence | No ROA | — | 5/31/2026 |
| 2401:5e40:c100::/40 | AS63798IPA-ENTERNET - Industrial Cyber Security Center of Excellence | No ROA | — | 5/31/2026 |
| 2401:5e40:c401::/48 | AS63785FU-NTP - Fukuoka University | No ROA | — | 5/31/2026 |
| 2401:5e40:c402::/48 | AS63785FU-NTP - Fukuoka University | No ROA | — | 5/31/2026 |
| 2401:5e40:c403::/48 | AS63785FU-NTP - Fukuoka University | No ROA | — | 5/31/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/2401:5e40:8000::/33Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/2401:5e40:8000::/33" | jq
External Links