asn.dev

Observed topology

AS20326 TERASWITCH - TeraSwitch Networks Inc.

Unclassified ARIN

Upstreams 49 carry this network
Downstreams 18 this network carries
Adjacent (IPv4) 71
Adjacent (IPv6) 33
Upstream graph Who carries AS20326, and who carries them, drawn as a map up to the transit-free core. 27 exchanges Where AS20326 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 49

Networks observed carrying traffic for AS20326: 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
AS1299Arelion Sweden ABTransitIPv4 IPv61,662
AS6939Hurricane Electric LLCTransitIPv4 IPv61,114
AS2914NTT America, Inc.TransitIPv4 IPv6810
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6462
AS174Cogent Communications, LLCTransitIPv4 IPv6394
AS50304Blix Solutions ASUnclassifiedIPv4 IPv6324
AS22652Videotron LteeResidentialIPv4 IPv6299
AS24482SG.GSHostingIPv4 IPv6175
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv6173
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv6173

All 49 upstreams →

Transit

Downstream networks

All 18

Networks for which AS20326 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS931HyonixHostingIPv4 IPv61,236
AS399114HyonixHostingIPv4833
AS213001LA5 Digital LTDUnclassifiedIPv4777
AS7859pair NetworksHostingIPv4 IPv6392
AS3402Butterfly ResearchUnclassifiedIPv4359
AS142594SpeedyPage LtdUnclassifiedIPv4 IPv6263
AS53891Zero PositionUnclassifiedIPv4177
AS399460HeliusUnclassifiedIPv4119
AS402722ArctUnclassifiedIPv4119
AS35487Misaka Network, Inc.UnclassifiedIPv4 IPv692

All 18 downstreams →

Adjacency

Adjacent networks

All 75

Every AS seen directly next to AS20326 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv62,805
AS6939Hurricane Electric LLCTransitIPv4 IPv61,785
AS931HyonixHostingIPv4 IPv61,707
AS2914NTT America, Inc.TransitIPv4 IPv61,498
AS213001LA5 Digital LTDUnclassifiedIPv4836
AS399114HyonixHostingIPv4833
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6653
AS174Cogent Communications, LLCTransitIPv4 IPv6644
AS50304Blix Solutions ASUnclassifiedIPv4 IPv6498
AS22652Videotron LteeResidentialIPv4 IPv6441

All 75 adjacent →

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.