Address space
AS11537 INTERNET2-RESEARCH-EDU
Unclassified ARIN
IPv4 prefixes
31
7.99K addresses
IPv6 prefixes
6
Most common size
/24
IPv4
Flagged
15
Shape
IPv4 prefix sizes
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
IPv6 prefix sizes
Geography
Where the space lands
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 37 |
Review
Flagged prefixes
| Prefix | Family | Addresses | Country | Flags |
|---|---|---|---|---|
| 64.57.22.144/28 | IPv4 | 16 | US | Too specific |
| 64.57.22.176/28 | IPv4 | 16 | US | Too specific |
| 64.57.22.208/28 | IPv4 | 16 | US | Too specific |
| 64.57.22.232/29 | IPv4 | 8 | US | Too specific |
| 162.252.70.0/25 | IPv4 | 128 | US | Too specific |
| 162.252.70.128/26 | IPv4 | 64 | US | Too specific |
| 162.252.70.192/31 | IPv4 | 2 | US | Too specific |
| 162.252.70.194/32 | IPv4 | 1 | US | Too specific |
| 162.252.70.195/32 | IPv4 | 1 | US | Too specific |
| 162.252.70.196/32 | IPv4 | 1 | US | Too specific |
| 162.252.70.197/32 | IPv4 | 1 | US | Too specific |
| 162.252.70.198/31 | IPv4 | 2 | US | Too specific |
| 162.252.70.200/29 | IPv4 | 8 | US | Too specific |
| 162.252.70.208/28 | IPv4 | 16 | US | Too specific |
| 162.252.70.224/27 | IPv4 | 32 | US | Too specific |
A flag is an observation, not an accusation. Very large and very specific prefixes are both legitimate in the right context.