asn.dev

Observed topology

AS45204 GEMNET-MN GEMNET LLC

Unclassified APNIC NSP

Upstreams 8 carry this network
Downstreams 24 this network carries
Adjacent (IPv4) 32
Adjacent (IPv6) 13
Upstream graph Who carries AS45204, and who carries them, drawn as a map up to the transit-free core. 8 exchanges Where AS45204 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS45204: 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 IPv6533
AS2914NTT America, Inc.TransitIPv4 IPv6194
AS174Cogent Communications, LLCTransitIPv458
AS12389PJSC RostelecomResidentialIPv448
AS3303Swisscom (Schweiz) AGResidentialIPv4 IPv625
AS17676SoftBank Corp.MobileIPv424
AS24482SG.GSHostingIPv4 IPv613
AS2497Internet Initiative Japan Inc.UnclassifiedIPv412

Transit

Downstream networks

All 24

Networks for which AS45204 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS17882UNIVISION LLCUnclassifiedIPv4 IPv68,154
AS10219Skymedia CorporationResidentialIPv4 IPv62,410
AS141681ONDO LLCHostingIPv4 IPv61,776
AS56301National Data Center buildingUnclassifiedIPv4 IPv6786
AS9934Mongolia TelecomResidentialIPv4696
AS45237Magicnet LLCUnclassifiedIPv4580
AS10109Topica LLC, Internet Service Provider,Ulaanbaatar, MongoliaUnclassifiedIPv4 IPv6496
AS24496GNET Co.,Ltd Internet Service Provider MongoliaResidentialIPv4464
AS24320Railcom - Commercial Center,UnclassifiedIPv4406
AS38818YOKOZUNANET LLCUnclassifiedIPv4232

All 24 downstreams →

Adjacency

Adjacent networks

All 32

Every AS seen directly next to AS45204 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv69,362
AS17882UNIVISION LLCUnclassifiedIPv4 IPv68,919
AS2914NTT America, Inc.TransitIPv4 IPv65,660
AS10219Skymedia CorporationResidentialIPv4 IPv62,456
AS141681ONDO LLCHostingIPv4 IPv61,776
AS174Cogent Communications, LLCTransitIPv41,353
AS12389PJSC RostelecomResidentialIPv41,174
AS56301National Data Center buildingUnclassifiedIPv4 IPv6844
AS9934Mongolia TelecomResidentialIPv4696
AS3303Swisscom (Schweiz) AGResidentialIPv4 IPv6658

All 32 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-28 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.21M 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.