asn.dev

Observed topology

AS46435 IRON - IRON

Unclassified ARIN

Upstreams 6 carry this network
Downstreams 12 this network carries
Adjacent (IPv4) 18
Adjacent (IPv6) 4
Upstream graph Who carries AS46435, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS46435 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS46435: 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
AS6461Zayo BandwidthTransitIPv4 IPv6357
AS3356Level 3 Parent, LLCTransitIPv4289
AS6939Hurricane Electric LLCTransitIPv489
AS11164Internet2EducationIPv4 IPv613
AS11537Internet2UnclassifiedIPv4 IPv612
AS293ESnetUnclassifiedIPv42

Transit

Downstream networks

All 12

Networks for which AS46435 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS11808University of IdahoEducationIPv4 IPv6682
AS11252Idaho State UniversityEducationIPv4269
AS1062City of EmmettUnclassifiedIPv4179
AS33281BRIGHAM YOUNG UNIVERSITY - IDAHOUnclassifiedIPv4119
AS46662Boise State UniversityUnclassifiedIPv463
AS393592Bonneville Joint School District no. 93UnclassifiedIPv456
AS22704College of Eastern IdahoUnclassifiedIPv453
AS32193City of Ammon, IdahoUnclassifiedIPv452
AS402910JeffersonUnclassifiedIPv451
AS14702Idaho National LaboratoryUnclassifiedIPv432

All 12 downstreams →

Adjacency

Adjacent networks

All 18

Every AS seen directly next to AS46435 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6461Zayo BandwidthTransitIPv4 IPv61,204
AS11808University of IdahoEducationIPv4 IPv6682
AS3356Level 3 Parent, LLCTransitIPv4680
AS6939Hurricane Electric LLCTransitIPv4344
AS11252Idaho State UniversityEducationIPv4269
AS1062City of EmmettUnclassifiedIPv4179
AS33281BRIGHAM YOUNG UNIVERSITY - IDAHOUnclassifiedIPv4119
AS11537Internet2UnclassifiedIPv4 IPv684
AS46662Boise State UniversityUnclassifiedIPv463
AS393592Bonneville Joint School District no. 93UnclassifiedIPv456

All 18 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M 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.