asn.dev

Observed topology

AS4621 UNINET-AS-AP UNINET-

Education APNIC Educational/Research

Upstreams 9 carry this network
Downstreams 65 this network carries
Adjacent (IPv4) 76
Adjacent (IPv6) 27
Upstream graph Who carries AS4621, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS4621 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS4621: 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
AS4651National Telecom Public Company LimitedUnclassifiedIPv4 IPv63,176
AS24475ThaiREN.Thailand Research and Education Network ThailandUnclassifiedIPv4 IPv6288
AS6939Hurricane Electric LLCTransitIPv4260
AS24482SG.GSHostingIPv4 IPv681
AS38040TOT Public Company LimitedUnclassifiedIPv468
AS63529Bangkok Neutral Internet Exchange Route ServersUnclassifiedIPv427
AS9505Taiwan Internet GatewayUnclassifiedIPv47
AS17639Converge ICT Solutions Inc.UnclassifiedIPv44
AS38001NewMedia Express Pte LtdHostingIPv44

Transit

Downstream networks

All 65

Networks for which AS4621 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS4762Mahidol University, ThailandEducationIPv4 IPv63,393
AS9903Rajamangala Institute of TechnologyEducationIPv43,076
AS9411Kasetsart University, ThailandEducationIPv4 IPv61,856
AS37932Rajamangala University of Technology IsanUnclassifiedIPv4 IPv61,045
AS55545Suranaree University of TechnologyUnclassifiedIPv4 IPv6880
AS9533King Mongkut's Institute of Technology North BangkokEducationIPv4847
AS9551King Mongkut's University of TechnologyEducationIPv4784
AS133880The Thai Red Cross SocietyUnclassifiedIPv4686
AS132482Rajamangala University of Technology RattanakosinUnclassifiedIPv4 IPv6661
AS132866Rajamangala University of Technology Suvarnabhumi under UniNet NetworkUnclassifiedIPv4603

All 65 downstreams →

Adjacency

Adjacent networks

All 77

Every AS seen directly next to AS4621 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS4651National Telecom Public Company LimitedUnclassifiedIPv4 IPv622,445
AS4762Mahidol University, ThailandEducationIPv4 IPv63,393
AS9903Rajamangala Institute of TechnologyEducationIPv43,076
AS24475ThaiREN.Thailand Research and Education Network ThailandUnclassifiedIPv4 IPv62,074
AS9411Kasetsart University, ThailandEducationIPv4 IPv61,856
AS37932Rajamangala University of Technology IsanUnclassifiedIPv4 IPv61,045
AS55545Suranaree University of TechnologyUnclassifiedIPv4 IPv6880
AS9533King Mongkut's Institute of Technology North BangkokEducationIPv4847
AS9551King Mongkut's University of TechnologyEducationIPv4784
AS133880The Thai Red Cross SocietyUnclassifiedIPv4686

All 77 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.