Address space
AS3676 UIOWA-AS
IPv4 prefixes
9
131K addresses
IPv6 prefixes
1
Most common size
/16
IPv4
Flagged
7
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 | 10 |
Review
Flagged prefixes
| Prefix | Family | Addresses | Country | Flags |
|---|---|---|---|---|
| 198.49.182.0/25 | IPv4 | 128 | US | Too specific |
| 198.49.182.130/31 | IPv4 | 2 | US | Too specific |
| 198.49.182.132/30 | IPv4 | 4 | US | Too specific |
| 198.49.182.136/29 | IPv4 | 8 | US | Too specific |
| 198.49.182.144/28 | IPv4 | 16 | US | Too specific |
| 198.49.182.160/27 | IPv4 | 32 | US | Too specific |
| 198.49.182.192/26 | 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.
Inventory
All prefixes
| Prefix | Family | Addresses | Country | Flags |
|---|---|---|---|---|
| 128.255.0.0/16 | IPv4 | 65,536 | US | |
| 129.255.0.0/16 | IPv4 | 65,536 | US | |
| 198.49.182.0/25 | IPv4 | 128 | US | Too specific |
| 198.49.182.130/31 | IPv4 | 2 | US | Too specific |
| 198.49.182.132/30 | IPv4 | 4 | US | Too specific |
| 198.49.182.136/29 | IPv4 | 8 | US | Too specific |
| 198.49.182.144/28 | IPv4 | 16 | US | Too specific |
| 198.49.182.160/27 | IPv4 | 32 | US | Too specific |
| 198.49.182.192/26 | IPv4 | 64 | US | Too specific |
| 2620:0:e50::/45 | IPv6 | — | US |