SUBNET.IM

AS21557Cybernet Communications, Inc.

United StatesRegistryARIN

At a glance

IPv4 prefixes

35

IPv6 prefixes

4

IPv4 addresses

21.8k

IPv6 /64s

4.3B

Upstream graph

The networks AS21557 is seen behind, one and two hops out, drawn from real AS paths.

AS21557Toward the internet core
Upstream graph for AS21557: 9 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS21557Cybernet Communic…This networkAS174Cogent Communicat…AS6461Zayo BandwidthAS6939Hurricane Electri…AS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS6667Elisa OyjAS32590Valve CorporationAS18106Viewqwest Pte LtdAS20130Depaul University

Networks observed one and two hops upstream of AS21557 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

6

adjacent networks

Upstreams
350%
Peers
350%
Downstreams
00%

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

Upstreams of AS21557
NetworkCountryRelationshipPathsVantage pts
AS6461Zayo BandwidthUSPeer2,79480
AS6939Hurricane Electric LLCUSPeer22962
AS174Cogent Communications, LLCUSPeer248

Prefixes

All 39

The largest blocks AS21557 originates, widest first.

Largest prefixes originated by AS21557
PrefixAddressesVisibility
64.15.208.0/204.1k80/80
75.127.48.0/204.1k80/80
147.92.120.0/212k80/80
104.218.188.0/221k80/80
147.92.120.0/221k80/80
147.92.124.0/221k80/80
162.219.200.0/221k80/80
23.128.104.0/2351280/80
23.128.104.0/2425680/80
23.128.105.0/2425680/80

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