asn.dev

Observed topology

AS51396 PFCLOUD Pfcloud UG (haftungsbeschrankt)

Hosting Spamhaus ASN-DROP RIPE

Upstreams 15 carry this network
Downstreams 18 this network carries
Adjacent (IPv4) 25
Adjacent (IPv6) 25
Upstream graph Who carries AS51396, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS51396 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 15

Networks observed carrying traffic for AS51396: 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
AS49581Ferdinand Zink trading as Tube-HostingHostingIPv4 IPv61,333
AS6939Hurricane Electric LLCTransitIPv4 IPv6439
AS64457Matteo Fruhwald trading as PipeHost e.U.UnclassifiedIPv6324
AS62403PletX GmbHUnclassifiedIPv4 IPv6268
AS34779T-2, d.o.o.ResidentialIPv4 IPv695
AS50304Blix Solutions ASUnclassifiedIPv4 IPv638
AS50263A-Systems Sp. z o.o.UnclassifiedIPv4 IPv636
AS24482SG.GSHostingIPv4 IPv620
AS12859BIT BVHostingIPv4 IPv611
AS8218Zayo Infrastructure France SAUnclassifiedIPv46

All 15 upstreams →

Transit

Downstream networks

All 18

Networks for which AS51396 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS214413WYOCORE TECHNOLOGIES LLCUnclassifiedIPv4427
AS218751Fontaine, LLCUnclassifiedIPv4122
AS209809ROCO HOST LTDUnclassifiedIPv4120
AS214865Falco NordmannUnclassifiedIPv4 IPv6114
AS205211Tilen BarbiricUnclassifiedIPv4 IPv696
AS219032Papilio Host LtdUnclassifiedIPv4 IPv696
AS198189Throttle LimitedUnclassifiedIPv4 IPv695
AS219097Fanth sp. z o.o.UnclassifiedIPv4 IPv692
AS212094Andre SchmidtUnclassifiedIPv672
AS208068Ludwig Moritz HodiamontUnclassifiedIPv671

All 18 downstreams →

Adjacency

Adjacent networks

All 34

Every AS seen directly next to AS51396 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS49581Ferdinand Zink trading as Tube-HostingHostingIPv4 IPv62,252
AS6939Hurricane Electric LLCTransitIPv4 IPv6705
AS214413WYOCORE TECHNOLOGIES LLCUnclassifiedIPv4427
AS62403PletX GmbHUnclassifiedIPv4 IPv6426
AS64457Matteo Fruhwald trading as PipeHost e.U.UnclassifiedIPv6361
AS34779T-2, d.o.o.ResidentialIPv4 IPv6191
AS218751Fontaine, LLCUnclassifiedIPv4122
AS209809ROCO HOST LTDUnclassifiedIPv4120
AS214865Falco NordmannUnclassifiedIPv4 IPv6114
AS205211Tilen BarbiricUnclassifiedIPv4 IPv696

All 34 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M 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.