asn.dev

Observed topology

AS39637 NETLOGICS-AS

Unclassified RIPE NSP

Upstreams 17 carry this network
Downstreams 20 this network carries
Adjacent (IPv4) 37
Adjacent (IPv6) 14
Upstream graph Who carries AS39637, and who carries them, drawn as a map up to the transit-free core. 5 exchanges Where AS39637 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 17

Networks observed carrying traffic for AS39637: 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
AS137409GSL Networks Pty LTDUnclassifiedIPv4 IPv6499
AS8455atom86 BVHostingIPv4 IPv6155
AS6939Hurricane Electric LLCTransitIPv4 IPv6113
AS24482SG.GSHostingIPv4 IPv617
AS37721Virtual-Technologies-Solutions-SAResidentialIPv4 IPv617
AS3216PJSC "Vimpelcom"MobileIPv414
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv414
AS12552GlobalConnect ABUnclassifiedIPv414
AS34927iFog GmbHHostingIPv414
AS37100SEACOM-ASUnclassifiedIPv414

All 17 upstreams →

Transit

Downstream networks

All 20

Networks for which AS39637 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS12595Onworx BVUnclassifiedIPv4 IPv6400
AS202482Iteeco Cooperatie U.A.UnclassifiedIPv4244
AS206188Zeta Datacenters B.V.UnclassifiedIPv4 IPv6226
AS43190Totaalnet Internet Works B.V.HostingIPv4 IPv6150
AS207777Bluefiber Holding B.V.UnclassifiedIPv4 IPv6128
AS203037Mica IT B.V.UnclassifiedIPv4122
AS41887Prolocation B.V.HostingIPv4 IPv6103
AS34108Stichting Breedband DelftUnclassifiedIPv4 IPv6102
AS42812Internet B.VUnclassifiedIPv490
AS31584Akzo Nobel Nederland B.V.UnclassifiedIPv461

All 20 downstreams →

Adjacency

Adjacent networks

All 37

Every AS seen directly next to AS39637 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS137409GSL Networks Pty LTDUnclassifiedIPv4 IPv61,857
AS8455atom86 BVHostingIPv4 IPv6469
AS12595Onworx BVUnclassifiedIPv4 IPv6400
AS42812Internet B.VUnclassifiedIPv4282
AS6939Hurricane Electric LLCTransitIPv4 IPv6267
AS202482Iteeco Cooperatie U.A.UnclassifiedIPv4244
AS206188Zeta Datacenters B.V.UnclassifiedIPv4 IPv6226
AS43190Totaalnet Internet Works B.V.HostingIPv4 IPv6150
AS207777Bluefiber Holding B.V.UnclassifiedIPv4 IPv6128
AS203037Mica IT B.V.UnclassifiedIPv4122

All 37 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-26 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.