asn.dev

Observed topology

AS209735 LAGRANGE

Hosting RIPE

Upstreams 6 carry this network
Downstreams 92 this network carries
Adjacent (IPv4) 12
Adjacent (IPv6) 94
Upstream graph Who carries AS209735, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS209735 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS209735: 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
AS44355Colocation LtdHostingIPv4 IPv6113
AS6939Hurricane Electric LLCTransitIPv4 IPv6109
AS207841Inferno Communications LtdUnclassifiedIPv614
AS24482SG.GSHostingIPv62
AS48185team.blue NVUnclassifiedIPv62
AS50300CustodianDC LimitedUnclassifiedIPv62

Transit

Downstream networks

All 92

Networks for which AS209735 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS205710Association CREALABUnclassifiedIPv61,554
AS206778OPTAUnclassifiedIPv61,160
AS206809PRO RESEAUUnclassifiedIPv61,160
AS207480ALGOMEDIA SASUnclassifiedIPv6982
AS206178AWEBOUnclassifiedIPv6926
AS211980Association ECHOESUnclassifiedIPv6926
AS208915HYPERLXC MEDICAL LTDUnclassifiedIPv4 IPv6158
AS205150Gustavo Ribeiro IribarremUnclassifiedIPv6144
AS200279Thomas DouwesUnclassifiedIPv692
AS47326KTT Carrier LimitedHostingIPv690

All 92 downstreams →

Adjacency

Adjacent networks

All 100

Every AS seen directly next to AS209735 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv69,632
AS205710Association CREALABUnclassifiedIPv61,554
AS206778OPTAUnclassifiedIPv61,160
AS206809PRO RESEAUUnclassifiedIPv61,160
AS207480ALGOMEDIA SASUnclassifiedIPv6982
AS206178AWEBOUnclassifiedIPv6926
AS211980Association ECHOESUnclassifiedIPv6926
AS44355Colocation LtdHostingIPv4 IPv6396
AS208915HYPERLXC MEDICAL LTDUnclassifiedIPv4 IPv6158
AS205150Gustavo Ribeiro IribarremUnclassifiedIPv6144

All 100 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-31 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.50M 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.