Address space
AS131893 RICOH-NET RICOH Company, Ltd.
IPv4 prefixes
18
5.63K addresses
IPv6 prefixes
3
Most common size
/24
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 | 21 |
Inventory
All prefixes
| Prefix | Family | Addresses | Country | Flags |
|---|---|---|---|---|
| 133.139.18.0/23 | IPv4 | 512 | JP | |
| 133.139.20.0/23 | IPv4 | 512 | JP | |
| 133.139.25.0/24 | IPv4 | 256 | JP | |
| 133.139.34.0/24 | IPv4 | 256 | JP | |
| 133.139.44.0/23 | IPv4 | 512 | JP | |
| 133.139.55.0/24 | IPv4 | 256 | JP | |
| 133.139.70.0/23 | IPv4 | 512 | JP | |
| 133.139.72.0/24 | IPv4 | 256 | JP | |
| 133.139.74.0/24 | IPv4 | 256 | JP | |
| 133.139.77.0/24 | IPv4 | 256 | JP | |
| 133.139.88.0/24 | IPv4 | 256 | JP | |
| 133.139.94.0/24 | IPv4 | 256 | JP | |
| 133.139.109.0/24 | IPv4 | 256 | JP | |
| 133.139.114.0/24 | IPv4 | 256 | JP | |
| 133.139.241.0/24 | IPv4 | 256 | JP | |
| 133.139.242.0/24 | IPv4 | 256 | JP | |
| 133.139.248.0/24 | IPv4 | 256 | JP | |
| 210.173.216.0/24 | IPv4 | 256 | JP | |
| 2001:df0:467::/48 | IPv6 | — | JP | |
| 2001:df7:4808::/48 | IPv6 | — | JP | |
| 2001:df7:480a::/48 | IPv6 | — | JP |