asn.dev

Observed topology

AS48729 HOSTKEY-FI-AS

Unclassified RIPE

Upstreams 15 carry this network
Downstreams 9 this network carries
Adjacent (IPv4) 22
Adjacent (IPv6) 14
Upstream graph Who carries AS48729, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS48729 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 15

Networks observed carrying traffic for AS48729: 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
AS57043HOSTKEY B.V.HostingIPv4 IPv6416
AS50263A-Systems Sp. z o.o.UnclassifiedIPv4192
AS174Cogent Communications, LLCTransitIPv4 IPv6186
AS395839HOSTKEYUnclassifiedIPv4116
AS6939Hurricane Electric LLCTransitIPv467
AS49559A-Systems Sp. z o.o.UnclassifiedIPv4 IPv623
AS202580A-Systems Sp. z o.o.UnclassifiedIPv419
AS24482SG.GSHostingIPv4 IPv610
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv69
AS20766Association "Gitoyen"UnclassifiedIPv48

All 15 upstreams →

Transit

Downstream networks

inferred

Networks for which AS48729 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS41745Baykov Ilya SergeevichUnclassifiedIPv4 IPv63,649
AS216475NKtelecom INCUnclassifiedIPv4 IPv61,149
AS215305Mastersoft S.R.L.UnclassifiedIPv4638
AS214798Digital City FZEUnclassifiedIPv4 IPv6614
AS198178365.partners INCUnclassifiedIPv4 IPv6324
AS216129SEBEK sp. z o.oUnclassifiedIPv4 IPv6301
AS207461HOSTING INDUSTRY LIMITEDUnclassifiedIPv4 IPv6151
AS216139Iron Hosting Centre LTDHostingIPv482
AS208112ROMAN EMPIRE BVHostingIPv42

Adjacency

Adjacent networks

All 24

Every AS seen directly next to AS48729 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS57043HOSTKEY B.V.HostingIPv4 IPv65,241
AS41745Baykov Ilya SergeevichUnclassifiedIPv4 IPv63,649
AS50263A-Systems Sp. z o.o.UnclassifiedIPv4 IPv61,469
AS216475NKtelecom INCUnclassifiedIPv4 IPv61,149
AS215305Mastersoft S.R.L.UnclassifiedIPv4638
AS214798Digital City FZEUnclassifiedIPv4 IPv6614
AS174Cogent Communications, LLCTransitIPv4 IPv6484
AS6939Hurricane Electric LLCTransitIPv4358
AS198178365.partners INCUnclassifiedIPv4 IPv6324
AS216129SEBEK sp. z o.oUnclassifiedIPv4 IPv6301

All 24 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-17 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.18M 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.