asn.dev

Observed topology

AS137409 GSLNETWORKS-AS-AP GSL Networks Pty LTD

Unclassified DROP-listed space APNIC

Upstreams 70 carry this network
Downstreams 241 this network carries
Adjacent (IPv4) 305
Adjacent (IPv6) 206
Upstream graph Who carries AS137409, and who carries them, drawn as a map up to the transit-free core. 69 exchanges Where AS137409 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 70

Networks observed carrying traffic for AS137409: 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
AS6939Hurricane Electric LLCTransitIPv4 IPv612,711
AS6461Zayo BandwidthTransitIPv4 IPv65,073
AS174Cogent Communications, LLCTransitIPv4 IPv63,567
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv62,524
AS29632Netassist International EOODUnclassifiedIPv62,082
AS22652Videotron LteeResidentialIPv4 IPv61,996
AS24482SG.GSHostingIPv4 IPv61,611
AS14907Wikimedia Foundation Inc.HostingIPv4 IPv61,601
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv61,600
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv61,597

All 70 upstreams →

Transit

Downstream networks

All 241

Networks for which AS137409 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS931HyonixHostingIPv4 IPv69,574
AS906DMIT Cloud ServicesHostingIPv4 IPv67,908
AS63018Dedicated.comHostingIPv4 IPv66,003
AS14593Space Exploration Technologies CorporationResidentialIPv4 IPv65,984
AS140227Hong Kong Communications International Co., LimitedUnclassifiedIPv44,956
AS3258xTom Japan CorporationHostingIPv4 IPv64,264
AS8888xTom Pty LtdHostingIPv4 IPv64,031
AS25820IT7 Networks IncHostingIPv43,783
AS199959GWY IT PTY LTDUnclassifiedIPv4 IPv63,561
AS53587AZURE TECHNOLOGY CO., LIMITEDHostingIPv4 IPv63,120

All 241 downstreams →

Adjacency

Adjacent networks

All 323

Every AS seen directly next to AS137409 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS8529Zain Omantel International FZ-LLCUnclassifiedIPv4 IPv651,037
AS6939Hurricane Electric LLCTransitIPv4 IPv627,778
AS6461Zayo BandwidthTransitIPv4 IPv625,032
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv618,761
AS3356Level 3 Parent, LLCTransitIPv4 IPv618,246
AS22652Videotron LteeResidentialIPv4 IPv616,629
AS14907Wikimedia Foundation Inc.HostingIPv4 IPv616,515
AS12189PhoenixNAP LLCHostingIPv4 IPv616,345
AS8280SYNAPSECOM S.A. Provider of Telecommunications and Internet ServicesHostingIPv4 IPv614,422
AS174Cogent Communications, LLCTransitIPv4 IPv613,684

All 323 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.22M 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.