asn.dev

Observed topology

AS40581 AREON-AS

Education APNIC

Upstreams 5 carry this network
Downstreams 23 this network carries
Adjacent (IPv4) 26
Adjacent (IPv6) 11
Upstream graph Who carries AS40581, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS40581 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS40581: 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
AS174Cogent Communications, LLCTransitIPv4 IPv6419
AS6939Hurricane Electric LLCTransitIPv4 IPv6196
AS11164Internet2EducationIPv4 IPv6132
AS11537Internet2UnclassifiedIPv4 IPv692
AS3257GTT Communications Inc.TransitIPv4 IPv615

Transit

Downstream networks

All 23

Networks for which AS40581 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS13809University of Arkansas for Medical SciencesUnclassifiedIPv4291
AS5090ARKANSAS TECH UNIVERSITYEducationIPv4 IPv6216
AS1603Henderson State UniversityUnclassifiedIPv4184
AS53450University of Arkansas at MonticelloUnclassifiedIPv4183
AS17124SouthArkUnclassifiedIPv4124
AS401965Southern Arkansas UniversityUnclassifiedIPv4123
AS401459Division of Agriculture of the University of ArkansasUnclassifiedIPv4122
AS14183University of Arkansas at Little RockUnclassifiedIPv4 IPv694
AS401264University of Arkansas Community College at MorriltonUnclassifiedIPv4 IPv693
AS10508University of ArkansasEducationIPv4 IPv689

All 23 downstreams →

Adjacency

Adjacent networks

All 28

Every AS seen directly next to AS40581 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4 IPv61,745
AS6939Hurricane Electric LLCTransitIPv4 IPv6676
AS11164Internet2EducationIPv4 IPv6351
AS13809University of Arkansas for Medical SciencesUnclassifiedIPv4291
AS11537Internet2UnclassifiedIPv4 IPv6288
AS5090ARKANSAS TECH UNIVERSITYEducationIPv4 IPv6216
AS1603Henderson State UniversityUnclassifiedIPv4184
AS53450University of Arkansas at MonticelloUnclassifiedIPv4183
AS17124SouthArkUnclassifiedIPv4124
AS401965Southern Arkansas UniversityUnclassifiedIPv4123

All 28 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-14 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.25M 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.