asn.dev

Observed topology

AS25255 H3G-Austria-AS Hutchison Drei Austria GmbH

Residential RIPE Cable/DSL/ISP

Upstreams 10 carry this network
Downstreams 5 this network carries
Adjacent (IPv4) 13
Adjacent (IPv6) 11
Upstream graph Who carries AS25255, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS25255 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS25255: 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
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbHUnclassifiedIPv4 IPv61,054
AS8447A1 Telekom Austria AGResidentialIPv4 IPv6847
AS6939Hurricane Electric LLCTransitIPv4350
AS53667FranTech SolutionsHostingIPv4256
AS3303Swisscom (Schweiz) AGResidentialIPv484
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv643
AS33891Core-Backbone GmbHHostingIPv416
AS31543myNet GmbHResidentialIPv4 IPv69
AS1121IDDQD-ASUnclassifiedIPv48
AS9002RETN LimitedUnclassifiedIPv65

Transit

Downstream networks

inferred

Networks for which AS25255 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS8437Hutchison Drei Austria GmbHUnclassifiedIPv4 IPv65,563
AS213080Oberoesterreichische Gesundheitsholding GmbHUnclassifiedIPv4 IPv6267
AS41491Stadtwerke Kapfenberg GmbHUnclassifiedIPv4144
AS12635Hutchison Drei Austria GmbHUnclassifiedIPv674
AS31543myNet GmbHResidentialIPv448

Adjacency

Adjacent networks

All 16

Every AS seen directly next to AS25255 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbHUnclassifiedIPv4 IPv68,838
AS8437Hutchison Drei Austria GmbHUnclassifiedIPv4 IPv67,557
AS8447A1 Telekom Austria AGResidentialIPv4 IPv65,876
AS31543myNet GmbHResidentialIPv4 IPv65,753
AS6939Hurricane Electric LLCTransitIPv41,044
AS3303Swisscom (Schweiz) AGResidentialIPv4 IPv6317
AS213080Oberoesterreichische Gesundheitsholding GmbHUnclassifiedIPv4 IPv6267
AS53667FranTech SolutionsHostingIPv4256
AS41491Stadtwerke Kapfenberg GmbHUnclassifiedIPv4202
AS12635Hutchison Drei Austria GmbHUnclassifiedIPv674

All 16 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.