Address space
AS21915 MCOEORG95340
IPv4 prefixes
9
12.56K addresses
IPv6 prefixes
3
Most common size
/23
IPv4
Flagged
5
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 | 12 |
Review
Flagged prefixes
| Prefix | Family | Addresses | Country | Flags |
|---|---|---|---|---|
| 137.164.12.44/30 | IPv4 | 4 | US | Too specific |
| 137.164.12.48/30 | IPv4 | 4 | US | Too specific |
| 137.164.12.176/29 | IPv4 | 8 | US | Too specific |
| 2607:f380::118:9a40:c2c0/122 | IPv6 | — | US | Too specific |
| 2607:f380::118:9a40:c300/122 | 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 |
|---|---|---|---|---|
| 137.164.12.44/30 | IPv4 | 4 | US | Too specific |
| 137.164.12.48/30 | IPv4 | 4 | US | Too specific |
| 137.164.12.176/29 | IPv4 | 8 | US | Too specific |
| 137.164.221.0/24 | IPv4 | 256 | US | |
| 137.164.222.0/23 | IPv4 | 512 | US | |
| 137.164.224.0/23 | IPv4 | 512 | US | |
| 206.78.128.0/19 | IPv4 | 8,192 | US | |
| 206.78.224.0/21 | IPv4 | 2,048 | US | |
| 206.78.232.0/22 | IPv4 | 1,024 | US | |
| 2607:f380::118:9a40:c2c0/122 | IPv6 | — | US | Too specific |
| 2607:f380::118:9a40:c300/122 | IPv6 | — | US | Too specific |
| 2607:f380:8e4::/47 | IPv6 | — | US |