Address space
AS23820 RAKUTEN Rakuten Group, Inc.
IPv4 prefixes
10
69.63K addresses
IPv6 prefixes
12
Most common size
/20
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 | 22 |
Inventory
All prefixes
| Prefix | Family | Addresses | Country | Flags |
|---|---|---|---|---|
| 133.237.0.0/17 | IPv4 | 32,768 | JP | |
| 133.237.128.0/18 | IPv4 | 16,384 | JP | |
| 133.237.192.0/19 | IPv4 | 8,192 | JP | |
| 133.237.224.0/20 | IPv4 | 4,096 | JP | |
| 133.237.240.0/21 | IPv4 | 2,048 | JP | |
| 133.237.248.0/24 | IPv4 | 256 | JP | |
| 133.237.249.0/24 | IPv4 | 256 | JP | |
| 133.237.250.0/23 | IPv4 | 512 | JP | |
| 133.237.252.0/22 | IPv4 | 1,024 | JP | |
| 202.72.48.0/20 | IPv4 | 4,096 | JP | |
| 2403:400::/38 | IPv6 | — | JP | |
| 2403:400:400::/39 | IPv6 | — | JP | |
| 2403:400:600::/39 | IPv6 | — | JP | |
| 2403:400:800::/40 | IPv6 | — | JP | |
| 2403:400:900::/40 | IPv6 | — | JP | |
| 2403:400:a00::/39 | IPv6 | — | JP | |
| 2403:400:c00::/38 | IPv6 | — | JP | |
| 2403:400:1000::/36 | IPv6 | — | JP | |
| 2403:400:2000::/35 | IPv6 | — | JP | |
| 2403:400:4000::/34 | IPv6 | — | JP | |
| 2403:400:8000::/33 | IPv6 | — | JP | |
| 2403:401::/36 | IPv6 | — | JP |