asn.dev

Observed topology

AS47232 ISPAlliance ISP Alliance a.s.

Residential RIPE Cable/DSL/ISP

Upstreams 9 carry this network
Downstreams 53 this network carries
Adjacent (IPv4) 69
Adjacent (IPv6) 41
Upstream graph Who carries AS47232, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS47232 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS47232: 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
AS1299Arelion Sweden ABTransitIPv4320
AS6939Hurricane Electric LLCTransitIPv4 IPv6308
AS39392SH.cz s.r.o.HostingIPv4 IPv692
AS6461Zayo BandwidthTransitIPv430
AS24482SG.GSHostingIPv4 IPv616
AS29504Freenet Liberec, z.s.UnclassifiedIPv4 IPv616
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbHUnclassifiedIPv410
AS20562Broadband Hosting B.V.HostingIPv410
AS37721Virtual Technologies & SolutionsResidentialIPv410

Transit

Downstream networks

All 53

Networks for which AS47232 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS201476ISP Alliance a.s.UnclassifiedIPv4 IPv6841
AS16276OVH SASHostingIPv4664
AS44002Sys-DataCom s.r.o.ResidentialIPv4 IPv6480
AS210712ISP Alliance a.s.UnclassifiedIPv4 IPv6449
AS204666Jiri TlapakUnclassifiedIPv4 IPv6437
AS204064CEZNET s.r.o.UnclassifiedIPv4 IPv6332
AS207886ECOMP spol s r.o.UnclassifiedIPv4 IPv6310
AS197296United Networks SEUnclassifiedIPv4 IPv6273
AS197879HelaPC s.r.o.UnclassifiedIPv4 IPv6245
AS33883TRIOPTIMUM s.r.o.UnclassifiedIPv4 IPv6214

All 53 downstreams →

Adjacency

Adjacent networks

All 72

Every AS seen directly next to AS47232 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS202297Skylon Solutions LimitedUnclassifiedIPv45,587
AS1299Arelion Sweden ABTransitIPv4 IPv64,520
AS6939Hurricane Electric LLCTransitIPv4 IPv62,888
AS16276OVH SASHostingIPv41,151
AS39392SH.cz s.r.o.HostingIPv4 IPv6991
AS201476ISP Alliance a.s.UnclassifiedIPv4 IPv6841
AS201053Stowarzyszenie e-PoludnieUnclassifiedIPv4763
AS16019Vodafone Czech Republic a.s.UnclassifiedIPv4501
AS44002Sys-DataCom s.r.o.ResidentialIPv4 IPv6480
AS204666Jiri TlapakUnclassifiedIPv4 IPv6472

All 72 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-05 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 73.57M 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.