asn.dev

Observed topology

AS207187 TKRJASEK

Unclassified RIPE NSP

Upstreams 10 carry this network
Downstreams 8 this network carries
Adjacent (IPv4) 18
Adjacent (IPv6) 15
Upstream graph Who carries AS207187, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS207187 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS207187: 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
AS209810Netcore services s.r.o.UnclassifiedIPv4168
AS39392SH.cz s.r.o.HostingIPv4 IPv6126
AS6939Hurricane Electric LLCTransitIPv4 IPv6102
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbHUnclassifiedIPv4 IPv69
AS8218Zayo Infrastructure France SAUnclassifiedIPv4 IPv69
AS24482SG.GSHostingIPv4 IPv69
AS29504Freenet Liberec, z.s.UnclassifiedIPv4 IPv69
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv69
AS6461Zayo BandwidthTransitIPv46
AS20562Broadband Hosting B.V.HostingIPv46

Transit

Downstream networks

inferred

Networks for which AS207187 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS207242NOEL, s.r.o.UnclassifiedIPv4 IPv6460
AS207198Kabelova televize Koprivnice, s.r.o.UnclassifiedIPv4 IPv6210
AS206420KABEL servis Praha spol. s r.o.UnclassifiedIPv4 IPv6184
AS201265ANAFRA a.s.UnclassifiedIPv4 IPv6123
AS202551INERA.CZ s.r.o.UnclassifiedIPv4 IPv692
AS204943NTV cable s.r.o.UnclassifiedIPv4 IPv692
AS205044MOSES Internet s.r.o.UnclassifiedIPv4 IPv692
AS205345HoralNET s.r.o.UnclassifiedIPv4 IPv692

Adjacency

Adjacent networks

All 18

Every AS seen directly next to AS207187 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS209810Netcore services s.r.o.UnclassifiedIPv4664
AS39392SH.cz s.r.o.HostingIPv4 IPv6560
AS6939Hurricane Electric LLCTransitIPv4 IPv6477
AS207242NOEL, s.r.o.UnclassifiedIPv4 IPv6460
AS207198Kabelova televize Koprivnice, s.r.o.UnclassifiedIPv4 IPv6361
AS206420KABEL servis Praha spol. s r.o.UnclassifiedIPv4 IPv6184
AS201265ANAFRA a.s.UnclassifiedIPv4 IPv6123
AS202551INERA.CZ s.r.o.UnclassifiedIPv4 IPv692
AS204943NTV cable s.r.o.UnclassifiedIPv4 IPv692
AS205044MOSES Internet s.r.o.UnclassifiedIPv4 IPv692

All 18 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-21 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M 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.