asn.dev

Observed topology

AS45204 GEMNET-MN GEMNET LLC

Upstreams 8 carry this network
Downstreams 24 this network carries
Adjacent (IPv4) 32
Adjacent (IPv6) 13

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 IPv6544
AS2914NTT America, Inc.TransitIPv4 IPv6173
AS174Cogent Communications, LLCTransitIPv460
AS12389PJSC RostelecomResidentialIPv460
AS3303Swisscom (Schweiz) AGResidentialIPv4 IPv625
AS17676SoftBank Corp.MobileIPv424
AS24482SG.GSHostingIPv4 IPv613
AS2497Internet Initiative Japan Inc.UnclassifiedIPv412

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.

Transit

Downstream networks

inferred

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

ASNetworkTypeFamiliesPaths seen
AS17882UNIVISION LLCUnclassifiedIPv4 IPv68,153
AS10219Skymedia CorporationResidentialIPv4 IPv62,411
AS141681ONDO LLCHostingIPv4 IPv61,817
AS9934Mongolia TelecomResidentialIPv4696
AS56301National Data Center buildingUnclassifiedIPv4 IPv6671
AS45237Magicnet LLCUnclassifiedIPv4638
AS10109Topica LLC, Internet Service Provider,Ulaanbaatar, MongoliaUnclassifiedIPv4 IPv6497
AS24496GNET Co.,Ltd Internet Service Provider MongoliaResidentialIPv4464
AS24320Railcom - Commercial Center,UnclassifiedIPv4406
AS38818YOKOZUNANET LLCUnclassifiedIPv4232
AS134356NBC Co.,LtdUnclassifiedIPv4 IPv6215
AS55408Univision LLC. To TTK STM1 UPSTREAM PROVIDERUnclassifiedIPv4 IPv6207
AS135033BodiSystems Co. LtdUnclassifiedIPv4174
AS56293Kewiko LLCResidentialIPv4 IPv6149
AS55342HomenetUnclassifiedIPv4116
AS13335Cloudflare, Inc.HostingIPv4 IPv694
AS38869Skynetworks LLCUnclassifiedIPv458
AS139579Mongolsat Networks LLCUnclassifiedIPv458
AS137982BOW LLCUnclassifiedIPv458
AS56038RackCorpHostingIPv458
AS9789Datacom Co.,LtdUnclassifiedIPv458
AS4850Digicom LLCUnclassifiedIPv458
AS58726# 203, Express towerUnclassifiedIPv458
AS58598MongoliaUnclassifiedIPv458

Adjacency

Adjacent networks

45 shown

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

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv69,555
AS17882UNIVISION LLCUnclassifiedIPv4 IPv68,926
AS2914NTT America, Inc.TransitIPv4 IPv65,042
AS10219Skymedia CorporationResidentialIPv4 IPv62,457
AS141681ONDO LLCHostingIPv4 IPv61,817
AS174Cogent Communications, LLCTransitIPv41,488
AS12389PJSC RostelecomResidentialIPv41,471
AS56301National Data Center buildingUnclassifiedIPv4 IPv6729
AS9934Mongolia TelecomResidentialIPv4696
AS3303Swisscom (Schweiz) AGResidentialIPv4 IPv6655
AS45237Magicnet LLCUnclassifiedIPv4638
AS10109Topica LLC, Internet Service Provider,Ulaanbaatar, MongoliaUnclassifiedIPv4 IPv6588
AS17676SoftBank Corp.MobileIPv4524
AS24496GNET Co.,Ltd Internet Service Provider MongoliaResidentialIPv4464
AS24320Railcom - Commercial Center,UnclassifiedIPv4406
AS24482SG.GSHostingIPv4 IPv6359
AS2497Internet Initiative Japan Inc.UnclassifiedIPv4302
AS38818YOKOZUNANET LLCUnclassifiedIPv4232
AS134356NBC Co.,LtdUnclassifiedIPv4 IPv6215
AS55408Univision LLC. To TTK STM1 UPSTREAM PROVIDERUnclassifiedIPv4 IPv6207
AS56293Kewiko LLCResidentialIPv4 IPv6204
AS135033BodiSystems Co. LtdUnclassifiedIPv4174
AS9789Datacom Co.,LtdUnclassifiedIPv4116
AS55342HomenetUnclassifiedIPv4116
AS13335Cloudflare, Inc.HostingIPv4 IPv694
AS4850Digicom LLCUnclassifiedIPv458
AS38869Skynetworks LLCUnclassifiedIPv458
AS56038RackCorpHostingIPv458
AS139579Mongolsat Networks LLCUnclassifiedIPv458
AS137982BOW LLCUnclassifiedIPv458
AS58726# 203, Express towerUnclassifiedIPv458
AS58598MongoliaUnclassifiedIPv458

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.

Interconnection

Exchange presence

recorded

Internet exchanges where Packet Clearing House has a port recorded for AS45204, largest fabric first. An exchange is shared switching where networks interconnect directly rather than paying a transit provider to carry traffic between them, so turning up at one is a deliberate choice about how this network wants to be reached. Each name opens that exchange's own page, with its peering LANs and every other network recorded on it. Recorded at 8 exchanges across 5 countries and 3 regions.

ExchangeLocationTheir addressMember ports
DE-CIX FrankfurtFrankfurt, Germany80.81.193.21,073
Equinix Internet Exchange SingaporeSingapore, Singapore27.111.230.162490
BroadBand Internet eXchange TokyoTokyo, Japan101.203.90.121358
Any2 CaliforniaLos Angeles, United States206.72.210.188322
Hong Kong Internet ExchangeHong Kong, China123.255.90.55307
JPIX TokyoTokyo, Japan210.171.225.235259
Equinix Internet Exchange Hong KongHong Kong, China2001:de8:7::4:5204:1232
BroadBand Internet eXchange Hong KongHong Kong, China103.203.158.111101

Unlike the tables above, this is recorded rather than inferred. An address on a peering LAN is at that exchange by definition. Two carve-outs all the same. Member ports counts every participant at the exchange, not this network's ports, so read it as a size proxy. And an absent exchange means PCH has no record of it, not that the network is not there.

Provenance

Where this comes from

Derived from routing tables collected at 2026-08-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.02M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.

Exchange presence comes from a separate dataset: the directory collected 2026-08-09 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,164 recorded member ports, licensed CC BY-NC-SA 3.0.

PeeringDB is the better-known directory and is deliberately not the source here: its acceptable-use policy forbids the bulk storage this needs. The two answer different questions anyway. PeeringDB reports what an operator declares about itself; this reports what PCH has recorded.