asn.dev

Observed topology

AS21274 BAS-NET-AS

Unclassified RIPE

Upstreams 2 carry this network
Downstreams 5 this network carries
Adjacent (IPv4) 7
Adjacent (IPv6) 2
Upstream graph Who carries AS21274, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS21274 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS21274: 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
AS60280Republican Unitary Enterprise "National Traffic Exchange Center"UnclassifiedIPv4 IPv699
AS20965GEANT VerenigingUnclassifiedIPv4 IPv66

Transit

Downstream networks

inferred

Networks for which AS21274 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS5498Institution Central Information and Analytical Center at the Ministry of Education of BelarusEducationIPv4269
AS60744A.V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of BelarusUnclassifiedIPv4204
AS30945State Scientific Enterprise 'United Institute of Informatics Problems of National Academy of Sciences of Belarus' (UIIP NASB)UnclassifiedIPv468
AS50934Belarussian National Technical UniversityUnclassifiedIPv468
AS199561Open Joint Stock Company 'Minsk Tractor Works'UnclassifiedIPv48

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS21274 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS60280Republican Unitary Enterprise "National Traffic Exchange Center"UnclassifiedIPv4 IPv6666
AS5498Institution Central Information and Analytical Center at the Ministry of Education of BelarusEducationIPv4269
AS60744A.V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of BelarusUnclassifiedIPv4204
AS30945State Scientific Enterprise 'United Institute of Informatics Problems of National Academy of Sciences of Belarus' (UIIP NASB)UnclassifiedIPv468
AS50934Belarussian National Technical UniversityUnclassifiedIPv468
AS20965GEANT VerenigingUnclassifiedIPv4 IPv656
AS199561Open Joint Stock Company 'Minsk Tractor Works'UnclassifiedIPv48

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-28 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.21M 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.