asn.dev

Observed topology

AS40994 Alwyzon Hohl IT e.U.

Hosting RIPE Content

Upstreams 11 carry this network
Downstreams 12 this network carries
Adjacent (IPv4) 18
Adjacent (IPv6) 20
Upstream graph Who carries AS40994, and who carries them, drawn as a map up to the transit-free core. 4 exchanges Where AS40994 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 11

Networks observed carrying traffic for AS40994: 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 IPv6623
AS174Cogent Communications, LLCTransitIPv4 IPv6266
AS6939Hurricane Electric LLCTransitIPv4 IPv6243
AS3257GTT Communications Inc.TransitIPv4 IPv6118
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv625
AS24482SG.GSHostingIPv4 IPv624
AS29504Freenet Liberec, z.s.UnclassifiedIPv4 IPv624
AS202297Skylon Solutions LimitedUnclassifiedIPv423
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv617
AS9002RETN LimitedUnclassifiedIPv62

All 11 upstreams →

Transit

Downstream networks

All 12

Networks for which AS40994 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS198510XTDEF-LimitedUnclassifiedIPv4 IPv6270
AS203997XTDef LimitedUnclassifiedIPv4 IPv6265
AS212085Alexander BruegmannUnclassifiedIPv4 IPv6100
AS204136Kevin HollyUnclassifiedIPv4 IPv690
AS205563Marc GomezUnclassifiedIPv665
AS218897Grachev Andrey VladimirovichUnclassifiedIPv458
AS215472Jan FermeUnclassifiedIPv632
AS216321Zero Attack Vector LLCUnclassifiedIPv632
AS203391Cloud DNS LtdHostingIPv4 IPv616
AS29997Vitalwerks Internet Solutions, LLCUnclassifiedIPv4 IPv612

All 12 downstreams →

Adjacency

Adjacent networks

All 23

Every AS seen directly next to AS40994 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv6920
AS6939Hurricane Electric LLCTransitIPv4 IPv6472
AS174Cogent Communications, LLCTransitIPv4 IPv6390
AS198510XTDEF-LimitedUnclassifiedIPv4 IPv6270
AS203997XTDef LimitedUnclassifiedIPv4 IPv6265
AS3257GTT Communications Inc.TransitIPv4 IPv6219
AS212085Alexander BruegmannUnclassifiedIPv4 IPv6100
AS204136Kevin HollyUnclassifiedIPv4 IPv690
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv688
AS29504Freenet Liberec, z.s.UnclassifiedIPv4 IPv669

All 23 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-06 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.