asn.dev

Observed topology

AS42763 CZAJEN

Residential RIPE Cable/DSL/ISP

Upstreams 5 carry this network
Downstreams 1 this network carries
Adjacent (IPv4) 6
Adjacent (IPv6) 0
Upstream graph Who carries AS42763, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS42763 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS42763: 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
AS12912T-Mobile Polska S.A.UnclassifiedIPv4709
AS6939Hurricane Electric LLCTransitIPv4161
AS202520SkyPass Solutions Sp. z o.o.HostingIPv4105
AS198424HLG Internet Sp. z o.o.ResidentialIPv448
AS24482SG.GSHostingIPv412

Transit

Downstream networks

inferred

Networks for which AS42763 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS43326Fundacja Nasza WizjaUnclassifiedIPv459

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS42763 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS12912T-Mobile Polska S.A.UnclassifiedIPv4761
AS6939Hurricane Electric LLCTransitIPv4161
AS202520SkyPass Solutions Sp. z o.o.HostingIPv4105
AS43326Fundacja Nasza WizjaUnclassifiedIPv459
AS198424HLG Internet Sp. z o.o.ResidentialIPv455
AS24482SG.GSHostingIPv412

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-29 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.36M 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.