asn.dev

Observed topology

AS45204 GEMNET-MN - GEMNET LLC

Unclassified APNIC NSP

Upstreams 7 carry this network
Downstreams 24 this network carries
Adjacent (IPv4) 31
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 IPv6583
AS2914NTT America, Inc.TransitIPv4 IPv6192
AS174Cogent Communications, LLCTransitIPv460
AS12389PJSC RostelecomResidentialIPv436
AS3303Swisscom (Schweiz) AGResidentialIPv4 IPv625
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 IPv68,293
AS10219Skymedia CorporationResidentialIPv4 IPv62,450
AS141681ONDO LLCHostingIPv4 IPv61,743
AS56301National Data Center buildingUnclassifiedIPv4 IPv6798
AS9934Mongolia TelecomResidentialIPv4708
AS45237Magicnet LLCUnclassifiedIPv4591
AS10109Topica LLC, Internet Service Provider,Ulaanbaatar, MongoliaUnclassifiedIPv4 IPv6503
AS24496GNET Co.,Ltd Internet Service Provider MongoliaResidentialIPv4472
AS24320Railcom - Commercial Center,UnclassifiedIPv4413
AS38818YOKOZUNANET LLCUnclassifiedIPv4236

All 24 downstreams →

Adjacency

Adjacent networks

All 31

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

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv610,401
AS17882UNIVISION LLCUnclassifiedIPv4 IPv69,065
AS2914NTT America, Inc.TransitIPv4 IPv65,499
AS10219Skymedia CorporationResidentialIPv4 IPv62,496
AS141681ONDO LLCHostingIPv4 IPv61,743
AS174Cogent Communications, LLCTransitIPv41,502
AS12389PJSC RostelecomResidentialIPv4911
AS56301National Data Center buildingUnclassifiedIPv4 IPv6857
AS9934Mongolia TelecomResidentialIPv4708
AS3303Swisscom (Schweiz) AGResidentialIPv4 IPv6663

All 31 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-12 18:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.25M 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.