asn.dev

Observed topology

AS203201 IT-SUPERNAP INFRASTRUCTURE ITALIA COLO S.R.L.

Residential RIPE

Upstreams 14 carry this network
Downstreams 11 this network carries
Adjacent (IPv4) 26
Adjacent (IPv6) 8
Upstream graph Who carries AS203201, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS203201 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 14

Networks observed carrying traffic for AS203201: 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
AS1267WIND TRE S.P.A.MobileIPv4 IPv6429
AS1299Arelion Sweden ABTransitIPv4 IPv6297
AS28716Retelit Digital Services S.p.A.UnclassifiedIPv450
AS6939Hurricane Electric LLCTransitIPv4 IPv632
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv419
AS8220COLT Technology Services Group LimitedHostingIPv419
AS59919Brainbox S.r.l.ResidentialIPv410
AS3356Level 3 Parent, LLCTransitIPv63
AS24482SG.GSHostingIPv4 IPv63
AS33891Core-Backbone GmbHHostingIPv42

All 14 upstreams →

Transit

Downstream networks

All 11

Networks for which AS203201 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS41606Logos Technologies S.r.l.ResidentialIPv41,020
AS39825NEEN S.p.AHostingIPv4484
AS20658Computer Design SrlUnclassifiedIPv4477
AS204760MOMIT SRLUnclassifiedIPv4 IPv6257
AS209634Explorer Servizi S.R.LUnclassifiedIPv4 IPv6212
AS42665SIRTI S.p.A.UnclassifiedIPv4180
AS202371ZAL Network S.r.l.ResidentialIPv4131
AS197290@Works SrlUnclassifiedIPv460
AS207199team.blue Denmark A/SHostingIPv459
AS207697Immobiliare.it S.p.A.UnclassifiedIPv432

All 11 downstreams →

Adjacency

Adjacent networks

All 27

Every AS seen directly next to AS203201 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv61,581
AS1267WIND TRE S.P.A.MobileIPv4 IPv61,418
AS41606Logos Technologies S.r.l.ResidentialIPv41,020
AS39825NEEN S.p.AHostingIPv4484
AS20658Computer Design SrlUnclassifiedIPv4477
AS204760MOMIT SRLUnclassifiedIPv4 IPv6257
AS209634Explorer Servizi S.R.LUnclassifiedIPv4 IPv6212
AS28716Retelit Digital Services S.p.A.UnclassifiedIPv4207
AS3356Level 3 Parent, LLCTransitIPv4 IPv6196
AS42665SIRTI S.p.A.UnclassifiedIPv4180

All 27 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-03 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.45M 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.