asn.dev

Observed topology

AS41887 PROLOCATION Prolocation B.V.

Hosting RIPE NSP

Upstreams 33 carry this network
Downstreams 3 this network carries
Adjacent (IPv4) 33
Adjacent (IPv6) 18
Upstream graph Who carries AS41887, and who carries them, drawn as a map up to the transit-free core. 5 exchanges Where AS41887 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 33

Networks observed carrying traffic for AS41887: 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 IPv6566
AS39637ADES BVUnclassifiedIPv4 IPv6106
AS174Cogent Communications, LLCTransitIPv4 IPv698
AS3257GTT Communications Inc.TransitIPv454
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv630
AS48185team.blue NVUnclassifiedIPv4 IPv630
AS58057Securebit AGUnclassifiedIPv4 IPv630
AS24482SG.GSHostingIPv4 IPv629
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv628
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv628

All 33 upstreams →

Transit

Downstream networks

inferred

Networks for which AS41887 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS34108Stichting Breedband DelftUnclassifiedIPv4 IPv6419
AS49250onecentral B.V.UnclassifiedIPv4 IPv6339
AS209754VitrumNet BVUnclassifiedIPv4 IPv6119

Adjacency

Adjacent networks

All 37

Every AS seen directly next to AS41887 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv61,214
AS34108Stichting Breedband DelftUnclassifiedIPv4 IPv6419
AS49250onecentral B.V.UnclassifiedIPv4 IPv6339
AS209754VitrumNet BVUnclassifiedIPv4 IPv6208
AS174Cogent Communications, LLCTransitIPv4 IPv6194
AS39637ADES BVUnclassifiedIPv4 IPv6106
AS3257GTT Communications Inc.TransitIPv467
AS57866Fusix Networks B.V.UnclassifiedIPv451
AS58057Securebit AGUnclassifiedIPv4 IPv646
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv645

All 37 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.00M 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.