AS21859Zenlayer Inc

United StatesRegistryARINTypeEyeball

At a glance

IPv4 prefixes

1,701

IPv6 prefixes

160

IPv4 addresses

952k

IPv6 /64s

90.4B

Upstream graph

The networks AS21859 is seen behind, one and two hops out, drawn from real AS paths.

AS21859Toward the internet core

Networks observed one and two hops upstream of AS21859 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

1,125

adjacent networks

Upstreams: 14012%
Peers: 74366%
Downstreams: 24222%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 140.

Upstreams of AS21859
Network	Country	Relationship	Paths	Vantage pts
AS4229Zenlayer Inc	US	Peer	190,857	142
AS1299Arelion (fka. Telia Carrier)	SE	Peer	22,932	142
AS2914NTT America, Inc.	US	Peer	22,146	142
AS174Cogent Communications, LLC	US	Peer	11,472	136
AS3257GTT Communications Inc.	US	Peer	10,010	142
AS6939Hurricane Electric LLC	US	Peer	8,226	32
AS3356Lumen (Level 3)	US	Peer	6,301	136
AS132337Axclusive	SG	Peer	6,236	2
AS6461Zayo Bandwidth	US	Peer	6,068	141
AS38082True International Gateway Co., Ltd.	TH	Peer	5,838	123

Prefixes

All 1,861

The largest blocks AS21859 originates, widest first.

Largest prefixes originated by AS21859
Prefix	Addresses	Visibility
128.1.0.0/16	65.5k	79/80
128.14.0.0/16	65.5k	79/80
128.14.0.0/17	32.8k	79/80
129.227.128.0/17	32.8k	80/80
107.151.128.0/18	16.4k	79/80
107.155.0.0/18	16.4k	79/80
23.248.160.0/19	8.2k	79/80
23.251.96.0/19	8.2k	79/80
128.14.128.0/19	8.2k	79/80
129.227.64.0/19	8.2k	80/80

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