Address space
AS3912 CHECS
Education ARIN
IPv4 prefixes
38
8.94K addresses
IPv6 prefixes
1
Most common size
/24
IPv4
Flagged
22
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 | 39 |
Review
Flagged prefixes
| Prefix | Family | Addresses | Country | Flags |
|---|---|---|---|---|
| 192.65.78.0/26 | IPv4 | 64 | US | Too specific |
| 192.65.78.64/28 | IPv4 | 16 | US | Too specific |
| 192.65.78.80/29 | IPv4 | 8 | US | Too specific |
| 192.65.78.88/30 | IPv4 | 4 | US | Too specific |
| 192.65.78.96/27 | IPv4 | 32 | US | Too specific |
| 192.65.78.128/25 | IPv4 | 128 | US | Too specific |
| 206.206.145.0/26 | IPv4 | 64 | US | Too specific |
| 206.206.145.64/27 | IPv4 | 32 | US | Too specific |
| 206.206.145.96/29 | IPv4 | 8 | US | Too specific |
| 206.206.145.104/30 | IPv4 | 4 | US | Too specific |
| 206.206.145.120/29 | IPv4 | 8 | US | Too specific |
| 206.206.145.128/25 | IPv4 | 128 | US | Too specific |
| 206.206.155.0/25 | IPv4 | 128 | US | Too specific |
| 206.206.155.128/28 | IPv4 | 16 | US | Too specific |
| 206.206.155.144/30 | IPv4 | 4 | US | Too specific |
| 206.206.155.148/31 | IPv4 | 2 | US | Too specific |
| 206.206.155.151/32 | IPv4 | 1 | US | Too specific |
| 206.206.155.153/32 | IPv4 | 1 | US | Too specific |
| 206.206.155.154/31 | IPv4 | 2 | US | Too specific |
| 206.206.155.156/30 | IPv4 | 4 | US | Too specific |
| 206.206.155.160/27 | IPv4 | 32 | US | Too specific |
| 206.206.155.192/26 | IPv4 | 64 | US | Too specific |
A flag is an observation, not an accusation. Very large and very specific prefixes are both legitimate in the right context.