Address space
AS131159 AS-YAMAGATAU Yamagata University
IPv4 prefixes
8
65.54K addresses
IPv6 prefixes
1
Most common size
/23
IPv4
Flagged
0
Shape
Prefix sizes
How this network carves its IPv4 space. A wall of /24s usually means many small customer assignments or fine-grained traffic engineering; a few short prefixes means large contiguous allocations announced whole.
Shape
Prefix sizes
Geography
Where the space lands
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 9 |
Inventory
All prefixes
| Prefix | Family | Addresses | Country | Flags |
|---|---|---|---|---|
| 133.24.0.0/17 | IPv4 | 32,768 | JP | |
| 133.24.128.0/18 | IPv4 | 16,384 | JP | |
| 133.24.192.0/19 | IPv4 | 8,192 | JP | |
| 133.24.224.0/20 | IPv4 | 4,096 | JP | |
| 133.24.240.0/21 | IPv4 | 2,048 | JP | |
| 133.24.248.0/23 | IPv4 | 512 | JP | |
| 133.24.250.0/23 | IPv4 | 512 | JP | |
| 133.24.252.0/22 | IPv4 | 1,024 | JP | |
| 2001:df0:25e::/48 | IPv6 | — | JP |