asn.dev

Observed topology

AS34251 IMC-AS LLC IMC

Residential RIPE Cable/DSL/ISP

Upstreams 9 carry this network
Downstreams 8 this network carries
Adjacent (IPv4) 18
Adjacent (IPv6) 0
Upstream graph Who carries AS34251, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS34251 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS34251: 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
AS35297Dataline LLCUnclassifiedIPv4539
AS9002RETN LimitedUnclassifiedIPv4160
AS6939Hurricane Electric LLCTransitIPv4141
AS57455Filanco Ukraine Ltd.UnclassifiedIPv492
AS28917Fiord Networks, UABUnclassifiedIPv437
AS3303Swisscom (Schweiz) AGResidentialIPv428
AS50263A-Systems Sp. z o.o.UnclassifiedIPv415
AS24482SG.GSHostingIPv49
AS8218Zayo Infrastructure France SAUnclassifiedIPv45

Transit

Downstream networks

inferred

Networks for which AS34251 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS44827Bravoport LtdUnclassifiedIPv4814
AS31158Asgard LLCUnclassifiedIPv4273
AS198720MOBICOM Ltd.UnclassifiedIPv4174
AS42556TOV "AirPort"UnclassifiedIPv4126
AS25174Osokorky Online LLCUnclassifiedIPv4108
AS29496Link-Service Ltd.UnclassifiedIPv470
AS8461Astelnet LLCUnclassifiedIPv414
AS24593Astelnet LLCUnclassifiedIPv45

Adjacency

Adjacent networks

All 18

Every AS seen directly next to AS34251 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS57455Filanco Ukraine Ltd.UnclassifiedIPv41,145
AS44827Bravoport LtdUnclassifiedIPv4814
AS35297Dataline LLCUnclassifiedIPv4555
AS6939Hurricane Electric LLCTransitIPv4281
AS9002RETN LimitedUnclassifiedIPv4273
AS31158Asgard LLCUnclassifiedIPv4273
AS3255LLC EKSINTECHUnclassifiedIPv4183
AS198720MOBICOM Ltd.UnclassifiedIPv4174
AS42556TOV "AirPort"UnclassifiedIPv4126
AS25174Osokorky Online LLCUnclassifiedIPv4108

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.40M 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.