AS8501Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center
PolandRegistryRIPE NCCAt a glance
IPv4 prefixes
7
IPv6 prefixes
1
IPv4 addresses
1.8k
IPv6 /64s
537M
Upstream graph
The networks AS8501 is seen behind, one and two hops out, drawn from real AS paths.
AS8501Toward the internet core
Networks observed one and two hops upstream of AS8501 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
65
adjacent networks
- Upstreams
- 711%
- Peers
- 3554%
- Downstreams
- 2335%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS3356Lumen (Level 3) |  US | Peer | 3,860 | 68 |
| AS2603NORDUnet |  DK | Peer | 3,712 | 60 |
| AS174Cogent Communications, LLC | US | Peer | 1,951 | 37 |
| AS21320GEANT Vereniging |  NL | Peer | 1,762 | 86 |
| AS20965GEANT Vereniging | NL | Peer | 215 | 2 |
| AS1853ACONET |  AT | Peer | 68 | 2 |
| AS2607Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET |  SK | Peer | 2 | 2 |
Prefixes
The largest blocks AS8501 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 212.191.224.0/24 | 256 | 79/80 |
| 212.191.225.0/24 | 256 | 79/80 |
| 212.191.227.0/24 | 256 | 79/80 |
| 212.191.229.0/24 | 256 | 80/80 |
| 212.191.240.0/24 | 256 | 79/80 |
| 212.191.241.0/24 | 256 | 79/80 |
| 212.191.244.0/24 | 256 | 80/80 |
| 2001:b10:c000::/35 | 537M × /64 | 60/62 |
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.