asn.dev

Observed topology

AS3361 DF-TUKWILA01

Hosting ARIN NSP

Upstreams 12 carry this network
Downstreams 5 this network carries
Adjacent (IPv4) 18
Adjacent (IPv6) 3
Upstream graph Who carries AS3361, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS3361 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 12

Networks observed carrying traffic for AS3361: 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
AS11404Wave BroadbandResidentialIPv4 IPv6608
AS6461Zayo BandwidthTransitIPv4 IPv6547
AS11739Digital Fortress, Inc.HostingIPv4336
AS2914NTT America, Inc.TransitIPv4260
AS20055Wholesail networks LLCResidentialIPv4 IPv6165
AS6939Hurricane Electric LLCTransitIPv4142
AS9002RETN LimitedUnclassifiedIPv440
AS3130RGnet OUUnclassifiedIPv420
AS7575Australian Academic and Research Network (AARNet)EducationIPv420
AS24482SG.GSHostingIPv420

All 12 upstreams →

Transit

Downstream networks

inferred

Networks for which AS3361 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS14042Comcast Cable Communications Management, LLCUnclassifiedIPv458
AS46501WatchGuard Technologies, Inc.UnclassifiedIPv458
AS394275Parallels IncUnclassifiedIPv457
AS11858Open Text CorporationUnclassifiedIPv426
AS393967Lynden IncorporatedUnclassifiedIPv426

Adjacency

Adjacent networks

All 18

Every AS seen directly next to AS3361 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6461Zayo BandwidthTransitIPv4 IPv6646
AS11404Wave BroadbandResidentialIPv4 IPv6608
AS11739Digital Fortress, Inc.HostingIPv4336
AS2914NTT America, Inc.TransitIPv4311
AS20055Wholesail networks LLCResidentialIPv4 IPv6192
AS6939Hurricane Electric LLCTransitIPv4163
AS14042Comcast Cable Communications Management, LLCUnclassifiedIPv458
AS46501WatchGuard Technologies, Inc.UnclassifiedIPv458
AS394275Parallels IncUnclassifiedIPv457
AS9002RETN LimitedUnclassifiedIPv446

All 18 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-19 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.17M 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.