asn.dev

Observed topology

AS204211 LOCYAN-NETWORK-AS LoCyanTeam

Upstreams 11 carry this network
Downstreams 11 this network carries
Adjacent (IPv4) 4
Adjacent (IPv6) 24

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS204211: 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
AS6939Hurricane Electric LLCTransitIPv6128
AS174Cogent Communications, LLCTransitIPv4 IPv691
AS206069Cornseed LimitedResidentialIPv4 IPv666
AS207529NYANLOLI LTDUnclassifiedIPv665
AS210352Yijia XuResidentialIPv638
AS40929MoeDoveHostingIPv634
AS139317Ningbo Dahuamao Information Technology Co LtdEducationIPv630
AS51087Bling Network LtdUnclassifiedIPv65
AS24482SG.GSHostingIPv64
AS204539Axivora Connect LtdResidentialIPv63
AS205794JINZE YANGUnclassifiedIPv62

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 AS204211 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS219332Xiang ZhouUnclassifiedIPv6161
AS202396Zeng YukaiUnclassifiedIPv668
AS211729Yiming ZhangUnclassifiedIPv4 IPv662
AS202939Chimon Technology LtdResidentialIPv4 IPv659
AS219378ZHANG XIYUANUnclassifiedIPv638
AS201705Xinrun LiUnclassifiedIPv634
AS47778Sunoaki Network LLCUnclassifiedIPv628
AS207529NYANLOLI LTDUnclassifiedIPv613
AS205369LI YIRANUnclassifiedIPv68
AS197817Yunxiao BaiUnclassifiedIPv64
AS204921zhenyun sunUnclassifiedIPv61

Adjacency

Adjacent networks

29 shown

Every AS seen directly next to AS204211 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4 IPv6332
AS206069Cornseed LimitedResidentialIPv4 IPv6293
AS6939Hurricane Electric LLCTransitIPv6162
AS219332Xiang ZhouUnclassifiedIPv6161
AS207529NYANLOLI LTDUnclassifiedIPv678
AS202396Zeng YukaiUnclassifiedIPv668
AS211729Yiming ZhangUnclassifiedIPv4 IPv662
AS202939Chimon Technology LtdResidentialIPv4 IPv659
AS210352Yijia XuResidentialIPv638
AS219378ZHANG XIYUANUnclassifiedIPv638
AS401804Maxwell Telecom LLCUnclassifiedIPv635
AS213891Liu ZhenUnclassifiedIPv635
AS201705Xinrun LiUnclassifiedIPv634
AS40929MoeDoveHostingIPv634
AS139317Ningbo Dahuamao Information Technology Co LtdEducationIPv630
AS47778Sunoaki Network LLCUnclassifiedIPv628
AS199310XIN BING XIANHostingIPv625
AS205369LI YIRANUnclassifiedIPv68
AS204539Axivora Connect LtdResidentialIPv65
AS204921zhenyun sunUnclassifiedIPv65
AS51087Bling Network LtdUnclassifiedIPv65
AS24482SG.GSHostingIPv65
AS197817Yunxiao BaiUnclassifiedIPv64
AS205794JINZE YANGUnclassifiedIPv62

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 AS204211, 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 1 exchange across 1 country and 1 region.

ExchangeLocationTheir addressMember ports
Local Internet Exchange FrankfurtFrankfurt, Germany185.1.166.138223

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.