The University of Tokyo
Data as of 2026-10-04
BGP inherited
This organisation
| Netblocks | 11 · 204,288 IPv4 addresses |
| IPv6 | 2 prefixes (largest 2404:d540::/32) |
| Also registered under this name | 390 netblocks across 42 separate records |
| Record ID | 245654813 |
| Registry | BGP |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 2 shared RIR contact/maintainer handles |
| Registry names | 1 distinct registrant name across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
IP Ranges (11)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 130.69.0.0/16 | The University of Tokyo | BGP | ANNOUNCED | ● high |
| 133.11.0.0/16 | The University of Tokyo | BGP | ANNOUNCED | ● high |
| 133.69.160.0/22 | The University of Tokyo | BGP | ANNOUNCED | ● high |
| 133.69.168.0/22 | The University of Tokyo | BGP | ANNOUNCED | ● high |
| 133.69.172.0/22 | The University of Tokyo | BGP | ANNOUNCED | ● high |
| 133.69.176.0/24 | The University of Tokyo | BGP | ANNOUNCED | ● high |
| 133.69.184.0/24 | The University of Tokyo | BGP | ANNOUNCED | ● high |
| 157.82.0.0/16 | The University of Tokyo | BGP | ANNOUNCED | ● high |
| 192.51.208.0/20 | The University of Tokyo | BGP | ANNOUNCED | ● high |
| 2404:d540::/32 | The University of Tokyo | BGP | ANNOUNCED | ● high |
| 2404:d540:1::/48 | The University of Tokyo | BGP | ANNOUNCED | ● high |
IPv6 ranges (2)
Footprint over time
15 weekly snapshots · JSON
11
0 netblocks since 2026-07-05
2026-07-05
peak 11
2026-10-04
NIC Handles
AS2501
AS45688