asn.dev

Observed topology

AS37988 ALPHA-LAYER-AS-AP - Alpha Layer Pty Ltd

Unclassified APNIC NSP

Upstreams 2 carry this network
Downstreams 20 this network carries
Adjacent (IPv4) 10
Adjacent (IPv6) 19
Upstream graph Who carries AS37988, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS37988 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS37988: 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
AS136557Host Universal Pty LtdUnclassifiedIPv4 IPv6409
AS174Cogent Communications, LLCTransitIPv4 IPv6141

Transit

Downstream networks

All 20

Networks for which AS37988 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS212085Alexander BruegmannUnclassifiedIPv6108
AS199840Pieter BerkelUnclassifiedIPv4 IPv686
AS52025ParadoxNetworks LimitedUnclassifiedIPv668
AS153725Tenonet (Hangzhou) Co LtdUnclassifiedIPv662
AS30690Kazehana Networks LLCUnclassifiedIPv4 IPv650
AS200201Tomasz KepczynskiUnclassifiedIPv650
AS213798Jude Gabriel PowellUnclassifiedIPv4 IPv642
AS54148Dynamic Quantum NetworksUnclassifiedIPv4 IPv639
AS134666Hoshi NetworkUnclassifiedIPv636
AS139859TemasekTech.comUnclassifiedIPv636

All 20 downstreams →

Adjacency

Adjacent networks

All 22

Every AS seen directly next to AS37988 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS136557Host Universal Pty LtdUnclassifiedIPv4 IPv6998
AS174Cogent Communications, LLCTransitIPv4 IPv6337
AS212085Alexander BruegmannUnclassifiedIPv6108
AS199840Pieter BerkelUnclassifiedIPv4 IPv686
AS52025ParadoxNetworks LimitedUnclassifiedIPv668
AS153725Tenonet (Hangzhou) Co LtdUnclassifiedIPv662
AS30690Kazehana Networks LLCUnclassifiedIPv4 IPv650
AS200201Tomasz KepczynskiUnclassifiedIPv650
AS213798Jude Gabriel PowellUnclassifiedIPv4 IPv642
AS54148Dynamic Quantum NetworksUnclassifiedIPv4 IPv639

All 22 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.40M 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.