asn.dev

Observed topology

AS42156 GNX GNX B.V.

Unclassified RIPE

Upstreams 36 carry this network
Downstreams 21 this network carries
Adjacent (IPv4) 59
Adjacent (IPv6) 23
Upstream graph Who carries AS42156, and who carries them, drawn as a map up to the transit-free core. 4 exchanges Where AS42156 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 36

Networks observed carrying traffic for AS42156: 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
AS200612Gulf Bridge International Inc.UnclassifiedIPv4 IPv6162
AS6939Hurricane Electric LLCTransitIPv4 IPv6134
AS9002RETN LimitedUnclassifiedIPv4 IPv6101
AS20562Broadband Hosting B.V.HostingIPv4 IPv670
AS60068Datacamp LimitedHostingIPv4 IPv668
AS15802Emirates Integrated Telecommunications Company PJSCUnclassifiedIPv460
AS6461Zayo BandwidthTransitIPv459
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv618
AS4637Telstra GlobalUnclassifiedIPv416
AS24482SG.GSHostingIPv4 IPv610

All 36 upstreams →

Transit

Downstream networks

All 21

Networks for which AS42156 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS51198Servada B.V.HostingIPv4 IPv6273
AS60140Buzinessware FZCOUnclassifiedIPv4 IPv6252
AS41696Ram Mobile Data (Netherlands) B.V.UnclassifiedIPv4 IPv6127
AS6412Gulfnet International KEMS LLCResidentialIPv4122
AS42718STUPA Holding B.V.UnclassifiedIPv4 IPv699
AS213931Alaitisal Computers and Requisites Trading LLCUnclassifiedIPv478
AS198949Radware LtdUnclassifiedIPv4 IPv673
AS205111ZOHO Corporation B.VUnclassifiedIPv468
AS214227Zoho Software Trading LLCUnclassifiedIPv466
AS40169USABROAD INC.UnclassifiedIPv4 IPv662

All 21 downstreams →

Adjacency

Adjacent networks

All 61

Every AS seen directly next to AS42156 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS200612Gulf Bridge International Inc.UnclassifiedIPv4 IPv6667
AS8529Zain Omantel International FZ-LLCUnclassifiedIPv4 IPv6433
AS6939Hurricane Electric LLCTransitIPv4 IPv6295
AS51198Servada B.V.HostingIPv4 IPv6273
AS60140Buzinessware FZCOUnclassifiedIPv4 IPv6252
AS9002RETN LimitedUnclassifiedIPv4 IPv6171
AS20562Broadband Hosting B.V.HostingIPv4 IPv6162
AS41696Ram Mobile Data (Netherlands) B.V.UnclassifiedIPv4 IPv6162
AS198949Radware LtdUnclassifiedIPv4 IPv6160
AS6461Zayo BandwidthTransitIPv4153

All 61 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.