asn.dev

Observed topology

AS39351 ESAB-AS 31173 Services AB

VPN RIPE NSP

Upstreams 38 carry this network
Downstreams 20 this network carries
Adjacent (IPv4) 56
Adjacent (IPv6) 47
Upstream graph Who carries AS39351, and who carries them, drawn as a map up to the transit-free core. 17 exchanges Where AS39351 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 38

Networks observed carrying traffic for AS39351: 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
AS174Cogent Communications, LLCTransitIPv4 IPv6890
AS1299Arelion Sweden ABTransitIPv4 IPv6835
AS6939Hurricane Electric LLCTransitIPv4 IPv6392
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6143
AS50304Blix Solutions ASUnclassifiedIPv4 IPv6124
AS58057Securebit AGUnclassifiedIPv4 IPv681
AS1836green.ch AGResidentialIPv4 IPv661
AS3320Deutsche Telekom AGMobileIPv4 IPv661
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv661
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv661

All 38 upstreams →

Transit

Downstream networks

All 20

Networks for which AS39351 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS39287Materialism s.r.l.HostingIPv4 IPv6641
AS199656ZynerUnclassifiedIPv4 IPv6162
AS214365Hypefox ABHostingIPv4 IPv6154
AS61282BrainMill ABResidentialIPv4 IPv6136
AS51519Karabro ABUnclassifiedIPv4 IPv6122
AS43969Prinode ABUnclassifiedIPv4120
AS204538Kareby Hosting ABHostingIPv4 IPv6102
AS39910Famco ABUnclassifiedIPv4 IPv694
AS197854Eisenia ABUnclassifiedIPv4 IPv694
AS216025Mullvad VPN ABVPNIPv4 IPv694

All 20 downstreams →

Adjacency

Adjacent networks

All 68

Every AS seen directly next to AS39351 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv61,535
AS174Cogent Communications, LLCTransitIPv4 IPv61,189
AS41051Openfactory GmbHUnclassifiedIPv4 IPv6861
AS6939Hurricane Electric LLCTransitIPv4 IPv6763
AS39287Materialism s.r.l.HostingIPv4 IPv6670
AS50304Blix Solutions ASUnclassifiedIPv4 IPv6654
AS51519Karabro ABUnclassifiedIPv4 IPv6343
AS199656ZynerUnclassifiedIPv4 IPv6340
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6307
AS204538Kareby Hosting ABHostingIPv4 IPv6238

All 68 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-04 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.33M 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.