asn.dev

Observed topology

AS7539 TWAREN-TW National Center for High-performance Computing

Education APNIC Educational/Research

Upstreams 10 carry this network
Downstreams 10 this network carries
Adjacent (IPv4) 21
Adjacent (IPv6) 6
Upstream graph Who carries AS7539, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS7539 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS7539: 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
AS6461Zayo BandwidthTransitIPv4 IPv6263
AS9924Taiwan Fixed Network, Telco and Network Service Provider.ResidentialIPv4123
AS6939Hurricane Electric LLCTransitIPv4 IPv690
AS9264Academia SinicaEducationIPv437
AS7575Australian Academic and Research Network (AARNet)EducationIPv413
AS1103SURF B.V.UnclassifiedIPv4 IPv68
AS11537Internet2UnclassifiedIPv4 IPv68
AS293ESnetUnclassifiedIPv47
AS2153CENICUnclassifiedIPv47
AS24482SG.GSHostingIPv4 IPv67

Transit

Downstream networks

inferred

Networks for which AS7539 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS1659Taiwan Academic Network (TANet) Information CenterUnclassifiedIPv4678
AS18183National Center for Research on Earthquake EngineeringUnclassifiedIPv4184
AS18426National Applied Research LaboratoriesUnclassifiedIPv461
AS18181National Health Research InstitutesUnclassifiedIPv433
AS18422Industrial Technology Research InstituteUnclassifiedIPv414
AS18047National Tsing-Hua UniversityUnclassifiedIPv412
AS17716National Taiwan UniversityEducationIPv49
AS9264Academia SinicaEducationIPv46
AS18420National Central UniversityUnclassifiedIPv46
AS38254Internet Technology LaboratoryUnclassifiedIPv42

Adjacency

Adjacent networks

All 22

Every AS seen directly next to AS7539 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1659Taiwan Academic Network (TANet) Information CenterUnclassifiedIPv4678
AS9264Academia SinicaEducationIPv4607
AS6461Zayo BandwidthTransitIPv4 IPv6409
AS9924Taiwan Fixed Network, Telco and Network Service Provider.ResidentialIPv4310
AS18183National Center for Research on Earthquake EngineeringUnclassifiedIPv4184
AS6939Hurricane Electric LLCTransitIPv4 IPv6119
AS17717Ministry of Education Computer Center Taipei, TaiwanUnclassifiedIPv493
AS11537Internet2UnclassifiedIPv4 IPv664
AS18426National Applied Research LaboratoriesUnclassifiedIPv461
AS2153CENICUnclassifiedIPv453

All 22 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-22 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.12M 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.