asn.dev

Observed topology

AS11537 INTERNET2-RESEARCH-EDU

Unclassified ARIN

Upstreams 6 carry this network
Downstreams 122 this network carries
Adjacent (IPv4) 127
Adjacent (IPv6) 86
Upstream graph Who carries AS11537, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS11537 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS11537: 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
AS1103SURF B.V.UnclassifiedIPv4 IPv631
AS7660Asia Pacific Advanced Network - JapanUnclassifiedIPv424
AS293ESnetUnclassifiedIPv423
AS24490Trans-Eurasia Information Network (TEIN2) - SGUnclassifiedIPv423
AS2153CENICUnclassifiedIPv422
AS7575Australian Academic and Research Network (AARNet)EducationIPv421

Transit

Downstream networks

All 122

Networks for which AS11537 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS16509Amazon.com, Inc.HostingIPv42,975
AS36914Kenya Education NetworkResidentialIPv42,721
AS2907Research Organization of Information and Systems, National Institute of InformaticsUnclassifiedIPv41,167
AS2018Tertiary Education and Research Network of South AfricaUnclassifiedIPv41,119
AS7497Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)EducationIPv4940
AS81MCNCUnclassifiedIPv4 IPv6784
AS21976NJEDge.Net, Inc.UnclassifiedIPv4 IPv6582
AS22742Connecticut Education NetworkUnclassifiedIPv4 IPv6512
AS8895King Abdul Aziz City for Science and TechnologyEducationIPv4490
AS237Merit Network Inc.UnclassifiedIPv4 IPv6417

All 122 downstreams →

Adjacency

Adjacent networks

All 129

Every AS seen directly next to AS11537 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS2153CENICUnclassifiedIPv4 IPv617,144
AS7660Asia Pacific Advanced Network - JapanUnclassifiedIPv4 IPv616,085
AS24490Trans-Eurasia Information Network (TEIN2) - SGUnclassifiedIPv4 IPv611,732
AS20965GEANT VerenigingUnclassifiedIPv4 IPv68,653
AS7575Australian Academic and Research Network (AARNet)EducationIPv4 IPv66,181
AS16509Amazon.com, Inc.HostingIPv44,706
AS1103SURF B.V.UnclassifiedIPv4 IPv64,064
AS6509CANARIE IncEducationIPv4 IPv63,421
AS36914Kenya Education NetworkResidentialIPv42,740
AS293ESnetUnclassifiedIPv42,191

All 129 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-11 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.47M 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.