asn.dev

Observed topology

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

Unclassified RIPE

Upstreams 13 carry this network
Downstreams 19 this network carries
Adjacent (IPv4) 6
Adjacent (IPv6) 30
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 13

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 IPv6142
AS6939Hurricane Electric LLCTransitIPv694
AS174Cogent Communications, LLCTransitIPv4 IPv637
AS204539Axivora Connect LtdResidentialIPv637
AS210352Yijia XuResidentialIPv636
AS44324MoeDove LLCResidentialIPv634
AS139317Ningbo Dahuamao Information Technology Co LtdEducationIPv633
AS207529NYANLOLI LTDUnclassifiedIPv627
AS24482SG.GSHostingIPv64
AS51087Bling Network LtdUnclassifiedIPv64

All 13 upstreams →

Transit

Downstream networks

All 19

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

ASNetworkTypeFamiliesPaths seen
AS219378ZHANG XIYUANUnclassifiedIPv6110
AS139317Ningbo Dahuamao Information Technology Co LtdEducationIPv686
AS197817Nyco Cloud Network LLCUnclassifiedIPv4 IPv683
AS203314HATS NETWORK INC.ResidentialIPv650
AS57330Sichuan Giraffe Technology Co., Ltd.ResidentialIPv645
AS211729Yiming ZhangUnclassifiedIPv4 IPv644
AS204921zhenyun sunUnclassifiedIPv4 IPv643
AS201705Xinrun LiUnclassifiedIPv637
AS215502Xing QingyuUnclassifiedIPv637
AS218538ARGSMENT LIMITEDUnclassifiedIPv637

All 19 downstreams →

Adjacency

Adjacent networks

All 31

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

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4 IPv6713
AS206069Cornseed LimitedResidentialIPv4 IPv6607
AS139317Ningbo Dahuamao Information Technology Co LtdEducationIPv6564
AS219378ZHANG XIYUANUnclassifiedIPv6110
AS6939Hurricane Electric LLCTransitIPv694
AS197817Nyco Cloud Network LLCUnclassifiedIPv4 IPv683
AS207529NYANLOLI LTDUnclassifiedIPv663
AS203314HATS NETWORK INC.ResidentialIPv650
AS57330Sichuan Giraffe Technology Co., Ltd.ResidentialIPv645
AS211729Yiming ZhangUnclassifiedIPv4 IPv644

All 31 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-01 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.48M 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.