Adjacent networks
AS21903 ARNHEM-01
Unclassified ARIN
Adjacency
Adjacent networks
Every AS seen directly next to AS21903 in a routing path, in either direction.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS26073 | Cofractal, Inc. | Unclassified | IPv6 | 131 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 97 |
| AS13830 | PureVoltage Hosting Inc. | Hosting | IPv6 | 36 |
| AS917 | Misaka Network, Inc. | Unclassified | IPv6 | 32 |
| AS20473 | The Constant Company, LLC | Hosting | IPv6 | 4 |
| AS60011 | Mythic Beasts Ltd | Hosting | IPv4 | 4 |
| AS58057 | Securebit AG | Unclassified | IPv6 | 1 |
Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.
Derived from routing tables collected at 2026-10-17 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.18M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.