Address space
AS13940 SJCOE
IPv4 prefixes
14
65.54K addresses
IPv6 prefixes
0
Most common size
/28
IPv4
Flagged
6
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.
Geography
Where the space lands
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 14 |
Review
Flagged prefixes
| Prefix | Family | Addresses | Country | Flags |
|---|---|---|---|---|
| 204.129.132.0/28 | IPv4 | 16 | US | Too specific |
| 204.129.132.16/28 | IPv4 | 16 | US | Too specific |
| 204.129.132.32/27 | IPv4 | 32 | US | Too specific |
| 204.129.132.64/26 | IPv4 | 64 | US | Too specific |
| 204.129.132.128/25 | IPv4 | 128 | US | Too specific |
| 205.154.255.48/29 | IPv4 | 8 | 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 |
|---|---|---|---|---|
| 204.129.0.0/17 | IPv4 | 32,768 | US | |
| 204.129.128.0/22 | IPv4 | 1,024 | US | |
| 204.129.132.0/28 | IPv4 | 16 | US | Too specific |
| 204.129.132.16/28 | IPv4 | 16 | US | Too specific |
| 204.129.132.32/27 | IPv4 | 32 | US | Too specific |
| 204.129.132.64/26 | IPv4 | 64 | US | Too specific |
| 204.129.132.128/25 | IPv4 | 128 | US | Too specific |
| 204.129.133.0/24 | IPv4 | 256 | US | |
| 204.129.134.0/23 | IPv4 | 512 | US | |
| 204.129.136.0/21 | IPv4 | 2,048 | US | |
| 204.129.144.0/20 | IPv4 | 4,096 | US | |
| 204.129.160.0/19 | IPv4 | 8,192 | US | |
| 204.129.192.0/18 | IPv4 | 16,384 | US | |
| 205.154.255.48/29 | IPv4 | 8 | US | Too specific |