asn.dev

Observed topology

AS2907 SINET-AS - Research Organization of Information and Systems, National Institute of Informatics

Unclassified APNIC Educational/Research

Upstreams 14 carry this network
Downstreams 96 this network carries
Adjacent (IPv4) 111
Adjacent (IPv6) 45
Upstream graph Who carries AS2907, and who carries them, drawn as a map up to the transit-free core. 5 exchanges Where AS2907 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 14

Networks observed carrying traffic for AS2907: 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
AS2497Internet Initiative Japan Inc.UnclassifiedIPv4 IPv624,834
AS6939Hurricane Electric LLCTransitIPv4 IPv65,673
AS7575Australian Academic and Research Network (AARNet)EducationIPv4 IPv6678
AS7660Asia Pacific Advanced Network - JapanUnclassifiedIPv4668
AS11537Internet2UnclassifiedIPv4621
AS1103SURF B.V.UnclassifiedIPv4 IPv6605
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv6604
AS24482SG.GSHostingIPv4 IPv6604
AS2153CENICUnclassifiedIPv4603
AS20485Joint Stock Company TransTeleComUnclassifiedIPv4602

All 14 upstreams →

Transit

Downstream networks

All 96

Networks for which AS2907 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS58647Kagawa UniversityUnclassifiedIPv411,177
AS23793National Institute of Advanced Industrial Science and TechnologyUnclassifiedIPv4981
AS2506NTT business Solutions corporationUnclassifiedIPv4 IPv6803
AS63770Industrial Cyber Security Center of ExcellenceUnclassifiedIPv4 IPv6590
AS59103SoftEther CorporationUnclassifiedIPv4 IPv6558
AS3488Japan Aerospace Exploration AgencyHostingIPv4556
AS18124Okayama University of ScienceUnclassifiedIPv4556
AS18148Fukuoka UniversityUnclassifiedIPv4 IPv6526
AS131159Yamagata UniversityUnclassifiedIPv4 IPv6373
AS58652Kochi UniversityUnclassifiedIPv4310

All 96 downstreams →

Adjacency

Adjacent networks

All 111

Every AS seen directly next to AS2907 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS2497Internet Initiative Japan Inc.UnclassifiedIPv4 IPv641,998
AS58647Kagawa UniversityUnclassifiedIPv411,177
AS6939Hurricane Electric LLCTransitIPv4 IPv610,327
AS7575Australian Academic and Research Network (AARNet)EducationIPv4 IPv61,227
AS7660Asia Pacific Advanced Network - JapanUnclassifiedIPv4 IPv61,150
AS1103SURF B.V.UnclassifiedIPv4 IPv61,099
AS11537Internet2UnclassifiedIPv4 IPv61,097
AS24482SG.GSHostingIPv4 IPv61,082
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv61,079
AS2153CENICUnclassifiedIPv4 IPv61,070

All 111 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-04 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.33M 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.