asn.dev

Observed topology

AS45102 ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd.

Hosting APNIC

Upstreams 76 carry this network
Downstreams 1 this network carries
Adjacent (IPv4) 77
Adjacent (IPv6) 29
Upstream graph Who carries AS45102, and who carries them, drawn as a map up to the transit-free core. 38 exchanges Where AS45102 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 76

Networks observed carrying traffic for AS45102: 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 IPv68,713
AS2914NTT America, Inc.TransitIPv4 IPv68,148
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv67,809
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv67,786
AS6939Hurricane Electric LLCTransitIPv4 IPv66,283
AS3356Level 3 Parent, LLCTransitIPv4 IPv65,137
AS21859Zenlayer IncHostingIPv4 IPv63,343
AS174Cogent Communications, LLCTransitIPv4 IPv62,906
AS17676SoftBank Corp.MobileIPv4 IPv61,926
AS7473Singapore Telecommunications LtdUnclassifiedIPv4 IPv61,923

All 76 upstreams →

Transit

Downstream networks

inferred

Networks for which AS45102 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS24429Zhejiang Taobao Network Co.,LtdHostingIPv458

Adjacency

Adjacent networks

All 77

Every AS seen directly next to AS45102 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv68,771
AS2914NTT America, Inc.TransitIPv4 IPv68,148
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv67,809
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv67,786
AS6939Hurricane Electric LLCTransitIPv4 IPv66,283
AS3356Level 3 Parent, LLCTransitIPv4 IPv65,137
AS21859Zenlayer IncHostingIPv4 IPv63,343
AS174Cogent Communications, LLCTransitIPv4 IPv62,906
AS17676SoftBank Corp.MobileIPv4 IPv61,926
AS7473Singapore Telecommunications LtdUnclassifiedIPv4 IPv61,923

All 77 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-10 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 71.97M 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.