Address space
AS600 OARNET-AS
IPv4 prefixes
270
900K addresses
IPv6 prefixes
2
Most common size
/24
IPv4
Flagged
9
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 |
|---|---|---|
| US | United States of America | 272 |
Review
Flagged prefixes
| Prefix | Family | Addresses | Country | Flags |
|---|---|---|---|---|
| 131.187.185.32/27 | IPv4 | 32 | US | Too specific |
| 131.187.185.64/26 | IPv4 | 64 | US | Too specific |
| 131.187.185.128/25 | IPv4 | 128 | US | Too specific |
| 199.18.168.0/29 | IPv4 | 8 | US | Too specific |
| 199.18.168.8/30 | IPv4 | 4 | US | Too specific |
| 199.18.168.16/28 | IPv4 | 16 | US | Too specific |
| 199.18.168.32/27 | IPv4 | 32 | US | Too specific |
| 199.18.168.64/26 | IPv4 | 64 | US | Too specific |
| 199.18.168.128/25 | IPv4 | 128 | US | Too specific |
A flag is an observation, not an accusation. Very large and very specific prefixes are both legitimate in the right context.
Inventory