Upstream networks
AS21903 ARNHEM-01
Unclassified ARIN
Transit
Upstream networks
Networks observed carrying traffic for AS21903: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS26073 | Cofractal, Inc. | Unclassified | IPv6 | 107 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 97 |
| AS20473 | The Constant Company, LLC | Hosting | IPv6 | 58 |
| AS917 | Misaka Network, Inc. | Unclassified | IPv6 | 32 |
| AS60011 | Mythic Beasts Ltd | Hosting | IPv4 | 4 |
| AS13830 | PureVoltage Hosting Inc. | Hosting | IPv6 | 1 |
| AS58057 | Securebit AG | Unclassified | IPv6 | 1 |
Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you.
Derived from routing tables collected at 2026-10-18 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.17M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.