AS37963Hangzhou Alibaba Advertising Co.,Ltd.

ChinaRegistryAPNICTypeEyeball

At a glance

IPv4 prefixes

792

IPv6 prefixes

139

IPv4 addresses

20.4M

IPv6 /64s

4.6T

Upstream graph

The networks AS37963 is seen behind, one and two hops out, drawn from real AS paths.

AS37963Toward the internet core

Networks observed one and two hops upstream of AS37963 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

adjacent networks

Upstreams: 1747%
Peers: 1953%
Downstreams: 00%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS37963
Network	Country	Relationship	Paths	Vantage pts
AS4811China Telecom Shanghai IDC Network	CN	Peer	20,959	131
AS23724China Telecom Beijing IDC Network	CN	Peer	8,138	131
AS4837China Unicom Backbone	CN	Peer	7,702	141
AS58461China Telecom Hangzhou IDC Network	CN	Peer	7,098	128
AS4816China Telecom (Group)	CN	Peer	6,393	135
AS56041China Mobile Group Zhejiang Company	CN	Peer	3,770	99
AS136195China Telecom Qingdao Huangdao IDC Network	CN	Peer	2,074	131
AS9808China Mobile Backbone	CN	Peer	1,754	119
AS17621China Unicom Shanghai network	CN	Peer	1,495	141
AS4808China Unicom Beijing Province Network	CN	Peer	1,331	141

Prefixes

All 931

The largest blocks AS37963 originates, widest first.

Largest prefixes originated by AS37963
Prefix	Addresses	Visibility
39.96.0.0/13	524k	79/80
8.140.0.0/14	262k	80/80
8.144.0.0/14	262k	80/80
39.96.0.0/14	262k	80/80
39.100.0.0/14	262k	80/80
39.104.0.0/14	262k	80/80
47.92.0.0/14	262k	80/80
47.96.0.0/14	262k	80/80
47.100.0.0/14	262k	79/80
112.124.0.0/14	262k	79/80

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.