asn.dev

Observed topology

AS204211 LOCYAN-NETWORK-AS Shanghai Yingyun Network Technology Co., Ltd.

Unclassified RIPE

Upstreams 11 carry this network
Downstreams 13 this network carries
Adjacent (IPv4) 3
Adjacent (IPv6) 22
Upstream graph Who carries AS204211, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS204211 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 11

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
AS206069Cornseed LimitedResidentialIPv4 IPv6189
AS6939Hurricane Electric LLCTransitIPv698
AS139317Ningbo Dahuamao Information Technology Co LtdEducationIPv642
AS210352Yijia XuResidentialIPv637
AS207529NYANLOLI LTDUnclassifiedIPv636
AS44324MoeDove LLCResidentialIPv632
AS51087Bling Network LtdUnclassifiedIPv65
AS24482SG.GSHostingIPv63
AS401753BIXCE IncUnclassifiedIPv63
AS25091IP-Max SAUnclassifiedIPv61

All 11 upstreams →

Transit

Downstream networks

All 13

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

ASNetworkTypeFamiliesPaths seen
AS219378ZHANG XIYUANUnclassifiedIPv670
AS139317Ningbo Dahuamao Information Technology Co LtdEducationIPv662
AS197817Nyco Cloud Network LLCUnclassifiedIPv459
AS201705Xinrun LiUnclassifiedIPv635
AS203309Liangyi MaUnclassifiedIPv635
AS203314HATS NETWORK INC.ResidentialIPv635
AS204921zhenyun sunUnclassifiedIPv635
AS211729Yiming ZhangUnclassifiedIPv635
AS215502Xing QingyuUnclassifiedIPv635
AS218538ARGSMENT LIMITEDUnclassifiedIPv635

All 13 downstreams →

Adjacency

Adjacent networks

All 24

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

ASNetworkTypeFamiliesPaths seen
AS206069Cornseed LimitedResidentialIPv4 IPv6783
AS139317Ningbo Dahuamao Information Technology Co LtdEducationIPv6205
AS6939Hurricane Electric LLCTransitIPv698
AS207529NYANLOLI LTDUnclassifiedIPv670
AS219378ZHANG XIYUANUnclassifiedIPv670
AS197817Nyco Cloud Network LLCUnclassifiedIPv459
AS210352Yijia XuResidentialIPv637
AS201705Xinrun LiUnclassifiedIPv635
AS203309Liangyi MaUnclassifiedIPv635
AS203314HATS NETWORK INC.ResidentialIPv635

All 24 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-14 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.46M 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.