asn.dev

Observed topology

AS50263 IXP-1-IX-EU A-Systems Sp. z o.o.

Unclassified RIPE

Upstreams 7 carry this network
Downstreams 144 this network carries
Adjacent (IPv4) 172
Adjacent (IPv6) 87
Upstream graph Who carries AS50263, and who carries them, drawn as a map up to the transit-free core. 11 exchanges Where AS50263 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS50263: 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
AS3257GTT Communications Inc.TransitIPv429
AS2914NTT America, Inc.TransitIPv423
AS1103SURF B.V.UnclassifiedIPv41
AS6461Zayo BandwidthTransitIPv41
AS8218Zayo Infrastructure France SAUnclassifiedIPv41
AS12552GlobalConnect ABUnclassifiedIPv41
AS37721Virtual Technologies & SolutionsResidentialIPv41

Transit

Downstream networks

All 144

Networks for which AS50263 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS204384LLC "OTT UKRAINE"HostingIPv4886
AS200736MEDIANET INVEST AEResidentialIPv4 IPv6775
AS200845AVATEL TELECOM, SAResidentialIPv4 IPv6487
AS49824PC "Astra-net"ResidentialIPv4 IPv6435
AS49559A-Systems Sp. z o.o.UnclassifiedIPv4367
AS214379South Park Networks LLCUnclassifiedIPv4 IPv6308
AS56899Granat Ukraine LLCUnclassifiedIPv4240
AS201814MEVSPACE sp. z o.o.HostingIPv4218
AS209155Onehostplanet s.r.o.UnclassifiedIPv4 IPv6184
AS60159EUROLINE UKRAINE LLCUnclassifiedIPv4 IPv6174

All 144 downstreams →

Adjacency

Adjacent networks

All 184

Every AS seen directly next to AS50263 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS2914NTT America, Inc.TransitIPv4 IPv63,589
AS202365Omer GOLGELIUnclassifiedIPv43,405
AS401753BIXCE IncUnclassifiedIPv4 IPv62,251
AS3257GTT Communications Inc.TransitIPv4 IPv62,199
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv41,884
AS48729ServerKing B.V.UnclassifiedIPv4 IPv61,783
AS12552GlobalConnect ABUnclassifiedIPv41,306
AS3255LLC EKSINTECHUnclassifiedIPv4 IPv61,169
AS60159EUROLINE UKRAINE LLCUnclassifiedIPv4 IPv61,036
AS49824PC "Astra-net"ResidentialIPv4 IPv6913

All 184 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-10 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 71.97M 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.