asn.dev

Observed topology

AS3701 LINK-OREGON - University of Oregon

Education ARIN Educational/Research

Upstreams 11 carry this network
Downstreams 19 this network carries
Adjacent (IPv4) 31
Adjacent (IPv6) 18
Upstream graph Who carries AS3701, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS3701 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 11

Networks observed carrying traffic for AS3701: 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
AS25899LS NetworksUnclassifiedIPv4 IPv6247
AS174Cogent Communications, LLCTransitIPv4 IPv681
AS6939Hurricane Electric LLCTransitIPv478
AS11537Internet2UnclassifiedIPv4 IPv672
AS11164Internet2EducationIPv4 IPv653
AS3356Level 3 Parent, LLCTransitIPv440
AS9002RETN LimitedUnclassifiedIPv4 IPv631
AS24482SG.GSHostingIPv4 IPv611
AS394256Tech Futures Interactive Inc.UnclassifiedIPv4 IPv611
AS3130RGnet OUUnclassifiedIPv410

All 11 upstreams →

Transit

Downstream networks

All 19

Networks for which AS3701 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS3582University of OregonEducationIPv4 IPv6376
AS14188Ashland Fiber NetworkResidentialIPv4254
AS39986George Fox UniversityUnclassifiedIPv4224
AS32522Multnomah Education Service DistrictUnclassifiedIPv4 IPv6223
AS4201Oregon State UniversityEducationIPv4 IPv6219
AS1798State of OregonUnclassifiedIPv4 IPv6164
AS29984Willamette UniversityUnclassifiedIPv485
AS6377Eugene School District 4JEducationIPv4 IPv652
AS36416Clackamas Education Service DistrictUnclassifiedIPv4 IPv652
AS46110Chemeketa Community CollegeEducationIPv450

All 19 downstreams →

Adjacency

Adjacent networks

All 31

Every AS seen directly next to AS3701 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS25899LS NetworksUnclassifiedIPv4 IPv6777
AS11537Internet2UnclassifiedIPv4 IPv6684
AS3582University of OregonEducationIPv4 IPv6376
AS6939Hurricane Electric LLCTransitIPv4 IPv6315
AS11164Internet2EducationIPv4 IPv6266
AS32522Multnomah Education Service DistrictUnclassifiedIPv4 IPv6262
AS14188Ashland Fiber NetworkResidentialIPv4254
AS3356Level 3 Parent, LLCTransitIPv4240
AS39986George Fox UniversityUnclassifiedIPv4224
AS174Cogent Communications, LLCTransitIPv4 IPv6223

All 31 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.00M 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.