asn.dev

Observed topology

AS26971 -Reserved AS-

Unclassified ARIN

Upstreams 2 carry this network
Downstreams 1 this network carries
Adjacent (IPv4) 4
Adjacent (IPv6) 0
Upstream graph Who carries AS26971, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS26971 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS26971: 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.

ASNetworkTypeFamiliesPaths seen
AS6922Texas Department of Information ResourcesUnclassifiedIPv457
AS276University of Texas SystemUnclassifiedIPv45

Transit

Downstream networks

inferred

Networks for which AS26971 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS268705TURBONET.NETWORK LTDAUnclassifiedIPv41

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS26971 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6922Texas Department of Information ResourcesUnclassifiedIPv457
AS276University of Texas SystemUnclassifiedIPv45
AS268705TURBONET.NETWORK LTDAUnclassifiedIPv41
AS269719GN TELECOMUnclassifiedIPv41

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-12 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.21M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

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. 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.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.