asn.dev

Observed topology

AS51601 IPTP

Unclassified RIPE

Upstreams 7 carry this network
Downstreams 9 this network carries
Adjacent (IPv4) 15
Adjacent (IPv6) 7
Upstream graph Who carries AS51601, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS51601 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS51601: 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
AS41095IPTP LTDHostingIPv4 IPv672
AS6939Hurricane Electric LLCTransitIPv4 IPv642
AS200612Gulf Bridge International Inc.UnclassifiedIPv425
AS50509Transroute Telecom LTDUnclassifiedIPv47
AS24482SG.GSHostingIPv4 IPv63
AS25091IP-Max SAUnclassifiedIPv62
AS49673Truenetwork LLCUnclassifiedIPv41

Transit

Downstream networks

inferred

Networks for which AS51601 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS42072Positive Systems LLCUnclassifiedIPv4 IPv693
AS17561LARUS LimitedUnclassifiedIPv466
AS57463NetIX Communications JSCUnclassifiedIPv446
AS50113FIRST SERVER LIMITEDUnclassifiedIPv4 IPv639
AS197969Federal State Unitary Enterprise "Morsviazsputnik"UnclassifiedIPv412
AS47243ONEXIM Group Ltd.UnclassifiedIPv411
AS49106Opticom Group AOUnclassifiedIPv411
AS59883Global Telecom LLCUnclassifiedIPv49
AS51408OOO Sirius-ProjectUnclassifiedIPv4 IPv68

Adjacency

Adjacent networks

All 16

Every AS seen directly next to AS51601 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS41095IPTP LTDHostingIPv4 IPv6428
AS50113FIRST SERVER LIMITEDUnclassifiedIPv4 IPv6160
AS42072Positive Systems LLCUnclassifiedIPv4 IPv693
AS6939Hurricane Electric LLCTransitIPv4 IPv680
AS17561LARUS LimitedUnclassifiedIPv466
AS57463NetIX Communications JSCUnclassifiedIPv446
AS50509Transroute Telecom LTDUnclassifiedIPv432
AS200612Gulf Bridge International Inc.UnclassifiedIPv425
AS51408OOO Sirius-ProjectUnclassifiedIPv4 IPv622
AS197969Federal State Unitary Enterprise "Morsviazsputnik"UnclassifiedIPv412

All 16 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.