asn.dev

Observed topology

AS201933 AS4NET

Unclassified RIPE

Upstreams 15 carry this network
Downstreams 4 this network carries
Adjacent (IPv4) 17
Adjacent (IPv6) 10
Upstream graph Who carries AS201933, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS201933 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 15

Networks observed carrying traffic for AS201933: 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
AS6939Hurricane Electric LLCTransitIPv4 IPv6212
AS3356Level 3 Parent, LLCTransitIPv4 IPv633
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv69
AS24482SG.GSHostingIPv4 IPv65
AS48185team.blue NVUnclassifiedIPv4 IPv65
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv65
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv65
AS3741Dimension DataUnclassifiedIPv44
AS17639Converge ICT Solutions Inc.UnclassifiedIPv44
AS37100SEACOM LimitedUnclassifiedIPv44

All 15 upstreams →

Transit

Downstream networks

inferred

Networks for which AS201933 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS207673Perform Content Services LimitedUnclassifiedIPv465
AS212797Perform Content Services LimitedUnclassifiedIPv465
AS43525Oculon LLPUnclassifiedIPv448
AS199710DAZN MEDIA SERVICES LIMITEDHostingIPv424

Adjacency

Adjacent networks

All 20

Every AS seen directly next to AS201933 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv6340
AS207673Perform Content Services LimitedUnclassifiedIPv465
AS212797Perform Content Services LimitedUnclassifiedIPv465
AS3356Level 3 Parent, LLCTransitIPv4 IPv653
AS43525Oculon LLPUnclassifiedIPv448
AS3223Voxility LLPHostingIPv424
AS199710DAZN MEDIA SERVICES LIMITEDHostingIPv424
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv618
AS24482SG.GSHostingIPv4 IPv68
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv68

All 20 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.