133.36.128.0/17
🇯🇵CIDR
133.36.128.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇯🇵 Japan
City
Bunkyō City
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 133.36.128.0/17 | AS131981TAKUSHOKUNET - Takushoku University | No ROA | RADB | 5/31/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 133.36.128.0/18 | AS131981TAKUSHOKUNET - Takushoku University | No ROA | — | 5/31/2026 |
| 133.36.192.0/18 | AS131981TAKUSHOKUNET - Takushoku University | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS131981 | RADB | MAINT-AS2497 | 11/13/2023 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/133.36.128.0/17Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/133.36.128.0/17" | jq
External Links