asn.dev

Observed topology

AS20119 ARROW

Unclassified ARIN

Upstreams 11 carry this network
Downstreams 29 this network carries
Adjacent (IPv4) 41
Adjacent (IPv6) 18
Upstream graph Who carries AS20119, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS20119 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 11

Networks observed carrying traffic for AS20119: 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 IPv6414
AS6939Hurricane Electric LLCTransitIPv4 IPv6282
AS174Cogent Communications, LLCTransitIPv4 IPv6205
AS852TELUS Communications Inc.ResidentialIPv4 IPv618
AS24482SG.GSHostingIPv4 IPv618
AS394256Tech Futures Interactive Inc.UnclassifiedIPv4 IPv618
AS293ESnetUnclassifiedIPv414
AS3130RGnet OUUnclassifiedIPv414
AS7575Australian Academic and Research Network (AARNet)EducationIPv414
AS9002RETN LimitedUnclassifiedIPv414

All 11 upstreams →

Transit

Downstream networks

All 29

Networks for which AS20119 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS55016Imperium Inc.UnclassifiedIPv4517
AS18897Montana Sky Networks, Inc.UnclassifiedIPv4 IPv6268
AS395097PACHEZ HOLDINGS LTD.UnclassifiedIPv4 IPv696
AS53356Free Range Cloud Hosting Inc.HostingIPv4 IPv692
AS26968PSD Professional Systems/Designs, LtdResidentialIPv4 IPv684
AS1011Accutar Biotechnology (Canada) Inc.UnclassifiedIPv4 IPv679
AS399327ConnectResidentialIPv4 IPv676
AS397864Harvest Vintage Imports Ltd.UnclassifiedIPv458
AS399219AIRFIBER INTERNET LTD.UnclassifiedIPv458
AS30079iQuid Inc.UnclassifiedIPv4 IPv655

All 29 downstreams →

Adjacency

Adjacent networks

All 41

Every AS seen directly next to AS20119 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6461Zayo BandwidthTransitIPv4 IPv62,828
AS394256Tech Futures Interactive Inc.UnclassifiedIPv4 IPv61,229
AS174Cogent Communications, LLCTransitIPv4 IPv6743
AS55016Imperium Inc.UnclassifiedIPv4517
AS6939Hurricane Electric LLCTransitIPv4 IPv6489
AS18897Montana Sky Networks, Inc.UnclassifiedIPv4 IPv6339
AS53356Free Range Cloud Hosting Inc.HostingIPv4 IPv6103
AS395097PACHEZ HOLDINGS LTD.UnclassifiedIPv4 IPv696
AS26968PSD Professional Systems/Designs, LtdResidentialIPv4 IPv684
AS1011Accutar Biotechnology (Canada) Inc.UnclassifiedIPv4 IPv679

All 41 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-14 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.25M 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.