asn.dev

Observed topology

AS31027 GLOBALCONNECT-AS31027

Unclassified RIPE NSP

Upstreams 10 carry this network
Downstreams 170 this network carries
Adjacent (IPv4) 182
Adjacent (IPv6) 84
Upstream graph Who carries AS31027, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS31027 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS31027: 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
AS3356Level 3 Parent, LLCTransitIPv4 IPv62,320
AS1299Arelion Sweden ABTransitIPv4 IPv61,853
AS6797GlobalConnect ABUnclassifiedIPv4 IPv61,250
AS12552GlobalConnect ABUnclassifiedIPv4 IPv61,234
AS6939Hurricane Electric LLCTransitIPv4 IPv6988
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv6144
AS9002RETN LimitedUnclassifiedIPv424
AS50304Blix Solutions ASUnclassifiedIPv49
AS3303Swisscom (Schweiz) AGResidentialIPv48
AS4637Telstra GlobalUnclassifiedIPv48

Transit

Downstream networks

All 170

Networks for which AS31027 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS58282Statens ITUnclassifiedIPv4 IPv61,272
AS21060Atea A/SUnclassifiedIPv4 IPv61,187
AS47292Sentia Denmark A/SUnclassifiedIPv4 IPv61,183
AS202914Adeo Datacenter ApSUnclassifiedIPv4 IPv61,172
AS42525GlobalConnect A/SUnclassifiedIPv4 IPv6866
AS44869FIBIA P/SUnclassifiedIPv4 IPv6741
AS215052Din Server Group ApSUnclassifiedIPv4 IPv6552
AS56496TV 2 Danmark A/SUnclassifiedIPv4 IPv6490
AS62121Christian Ebsen ApSUnclassifiedIPv4 IPv6479
AS42236DTU Science Park a/sUnclassifiedIPv4472

All 170 downstreams →

Adjacency

Adjacent networks

All 187

Every AS seen directly next to AS31027 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv610,739
AS1299Arelion Sweden ABTransitIPv4 IPv68,265
AS12552GlobalConnect ABUnclassifiedIPv4 IPv66,713
AS6797GlobalConnect ABUnclassifiedIPv4 IPv66,050
AS6939Hurricane Electric LLCTransitIPv4 IPv63,873
AS202914Adeo Datacenter ApSUnclassifiedIPv4 IPv62,155
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv61,905
AS44869FIBIA P/SUnclassifiedIPv4 IPv61,666
AS58282Statens ITUnclassifiedIPv4 IPv61,272
AS47292Sentia Denmark A/SUnclassifiedIPv4 IPv61,263

All 187 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-28 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.21M 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.