asn.dev

Observed topology

AS44489 STARNET

Residential RIPE Cable/DSL/ISP

Upstreams 8 carry this network
Downstreams 3 this network carries
Adjacent (IPv4) 10
Adjacent (IPv6) 8
Upstream graph Who carries AS44489, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS44489 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS44489: 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
AS39392SH.cz s.r.o.HostingIPv4 IPv61,468
AS6939Hurricane Electric LLCTransitIPv691
AS16019Vodafone Czech Republic a.s.UnclassifiedIPv468
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbHUnclassifiedIPv4 IPv633
AS24482SG.GSHostingIPv4 IPv633
AS29504Freenet Liberec, z.s.UnclassifiedIPv4 IPv633
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv633
AS20562Broadband Hosting B.V.HostingIPv426

Transit

Downstream networks

inferred

Networks for which AS44489 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS51420cyrilek.net z.s.UnclassifiedIPv41,006
AS57287OtavaNet s.r.o.UnclassifiedIPv4 IPv693
AS204567PCKBnet s.r.o.UnclassifiedIPv460

Adjacency

Adjacent networks

All 11

Every AS seen directly next to AS44489 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS39392SH.cz s.r.o.HostingIPv4 IPv62,464
AS51420cyrilek.net z.s.UnclassifiedIPv41,006
AS16019Vodafone Czech Republic a.s.UnclassifiedIPv4 IPv6122
AS6939Hurricane Electric LLCTransitIPv6103
AS57287OtavaNet s.r.o.UnclassifiedIPv4 IPv693
AS204567PCKBnet s.r.o.UnclassifiedIPv460
AS24482SG.GSHostingIPv4 IPv653
AS29504Freenet Liberec, z.s.UnclassifiedIPv4 IPv653
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv653
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbHUnclassifiedIPv4 IPv652

All 11 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-31 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.50M 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.