IPv4 addresses
132,096
CIDR ranges
3
Category
academic
Countries served by University of Tsukuba
Every country where this organization has IPv4 allocations, ranked by IPs held.
ASNs owned by University of Tsukuba
Largest CIDR ranges
| CIDR | IPs | ASN |
|---|---|---|
| 130.158.0.0/16 | 65.5K | AS37917 |
| 133.51.0.0/16 | 65.5K | AS37917 |
| 163.220.252.0/22 | 1.0K | AS37917 |