Address space
AS6106 UCR-EDU
IPv4 prefixes
11
131K addresses
IPv6 prefixes
18
Most common size
/22
IPv4
Flagged
3
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 | 29 |
Review
Flagged prefixes
| Prefix | Family | Addresses | Country | Flags |
|---|---|---|---|---|
| 137.164.23.16/31 | IPv4 | 2 | US | Too specific |
| 137.164.24.208/30 | IPv4 | 4 | US | Too specific |
| 2607:f380:1::118:9a41:8d00/122 | IPv6 | — | 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
All prefixes
| Prefix | Family | Addresses | Country | Flags |
|---|---|---|---|---|
| 137.164.23.16/31 | IPv4 | 2 | US | Too specific |
| 137.164.24.208/30 | IPv4 | 4 | US | Too specific |
| 138.23.0.0/18 | IPv4 | 16,384 | US | |
| 138.23.64.0/19 | IPv4 | 8,192 | US | |
| 138.23.96.0/21 | IPv4 | 2,048 | US | |
| 138.23.104.0/22 | IPv4 | 1,024 | US | |
| 138.23.108.0/22 | IPv4 | 1,024 | US | |
| 138.23.112.0/20 | IPv4 | 4,096 | US | |
| 138.23.128.0/17 | IPv4 | 32,768 | US | |
| 169.235.0.0/16 | IPv4 | 65,536 | US | |
| 192.31.146.0/24 | IPv4 | 256 | US | |
| 2607:f290::/44 | IPv6 | — | US | |
| 2607:f290:10::/48 | IPv6 | — | US | |
| 2607:f290:11::/48 | IPv6 | — | US | |
| 2607:f290:12::/47 | IPv6 | — | US | |
| 2607:f290:14::/46 | IPv6 | — | US | |
| 2607:f290:18::/45 | IPv6 | — | US | |
| 2607:f290:20::/43 | IPv6 | — | US | |
| 2607:f290:40::/42 | IPv6 | — | US | |
| 2607:f290:80::/41 | IPv6 | — | US | |
| 2607:f290:100::/40 | IPv6 | — | US | |
| 2607:f290:200::/39 | IPv6 | — | US | |
| 2607:f290:400::/38 | IPv6 | — | US | |
| 2607:f290:800::/37 | IPv6 | — | US | |
| 2607:f290:1000::/36 | IPv6 | — | US | |
| 2607:f290:2000::/35 | IPv6 | — | US | |
| 2607:f290:4000::/34 | IPv6 | — | US | |
| 2607:f290:8000::/33 | IPv6 | — | US | |
| 2607:f380:1::118:9a41:8d00/122 | IPv6 | — | US | Too specific |