AS3128University of Wisconsin System
United StatesRegistryARINAt a glance
IPv4 prefixes
12
IPv6 prefixes
1
IPv4 addresses
657k
IPv6 /64s
68.7B
Upstream graph
The networks AS3128 is seen behind, one and two hops out, drawn from real AS paths.
AS3128Toward the internet core
Networks observed one and two hops upstream of AS3128 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.
Neighbouring networks
28
adjacent networks
- Upstreams
- 621%
- Peers
- 1657%
- Downstreams
- 621%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS2381WiscNet | US | Peer | 1,513 | 45 |
| AS1299Arelion (fka. Telia Carrier) |  SE | Peer | 1,127 | 38 |
| AS6939Hurricane Electric LLC | US | Peer | 300 | 60 |
| AS11164Internet2 I2PX | US | Peer | 210 | 7 |
| AS7018AT&T Enterprises, LLC | US | Peer | 141 | 9 |
| AS11537Internet2 | US | Peer | 61 | 2 |
Prefixes
The largest blocks AS3128 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 131.210.0.0/16 | 65.5k | 80/80 |
| 137.81.0.0/16 | 65.5k | 80/80 |
| 137.104.0.0/16 | 65.5k | 80/80 |
| 138.49.0.0/16 | 65.5k | 80/80 |
| 139.225.0.0/16 | 65.5k | 80/80 |
| 141.233.0.0/16 | 65.5k | 80/80 |
| 143.200.0.0/16 | 65.5k | 80/80 |
| 143.235.0.0/16 | 65.5k | 80/80 |
| 143.236.0.0/16 | 65.5k | 80/80 |
| 144.13.0.0/16 | 65.5k | 80/80 |
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.