asn.dev

Observed topology

AS38930 FIBERRING LeaseWeb Network B.V.

Unclassified RIPE NSP

Upstreams 4 carry this network
Downstreams 14 this network carries
Adjacent (IPv4) 18
Adjacent (IPv6) 9
Upstream graph Who carries AS38930, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS38930 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS38930: 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
AS1299Arelion Sweden ABTransitIPv4 IPv6259
AS174Cogent Communications, LLCTransitIPv4 IPv672
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv655
AS3257GTT Communications Inc.TransitIPv4 IPv630

Transit

Downstream networks

All 14

Networks for which AS38930 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS56372ValueCare Holding B.V.UnclassifiedIPv4118
AS61005OpenTLD BVUnclassifiedIPv4 IPv6116
AS25433HenZ.nl B.V.UnclassifiedIPv494
AS207843vBoxx B.V.UnclassifiedIPv4 IPv690
AS16281Utelisys Communications B.V.UnclassifiedIPv4 IPv670
AS214988McCloud.nl B.V.UnclassifiedIPv463
AS9017Marcus van DamUnclassifiedIPv458
AS43861Circle B B.V.UnclassifiedIPv4 IPv645
AS47482Spectre Operations B.V.HostingIPv428
AS29141Bradler & Krantz GmbH & Co. KGHostingIPv419

All 14 downstreams →

Adjacency

Adjacent networks

All 18

Every AS seen directly next to AS38930 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv6995
AS61005OpenTLD BVUnclassifiedIPv4 IPv6687
AS174Cogent Communications, LLCTransitIPv4 IPv6314
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv6267
AS3257GTT Communications Inc.TransitIPv4 IPv6186
AS56372ValueCare Holding B.V.UnclassifiedIPv4118
AS25433HenZ.nl B.V.UnclassifiedIPv494
AS207843vBoxx B.V.UnclassifiedIPv4 IPv690
AS43861Circle B B.V.UnclassifiedIPv4 IPv686
AS16281Utelisys Communications B.V.UnclassifiedIPv4 IPv670

All 18 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.