SUBNET.IM

AS25University of California at Berkeley

United StatesRegistryARIN

At a glance

IPv4 prefixes

13

IPv6 prefixes

2

IPv4 addresses

206k

IPv6 /64s

4.3B

Upstream graph

The networks AS25 is seen behind, one and two hops out, drawn from real AS paths.

AS25Toward the internet core
Upstream graph for AS25: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS25University of Cal…This networkAS2152CENIC - CalRENAS3356Lumen (Level 3)AS6939Hurricane Electri…

Networks observed one and two hops upstream of AS25 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS25
NetworkCountryRelationshipPathsVantage pts
AS2152CENIC - CalRENUSPeer1,083141

Prefixes

The largest blocks AS25 originates, widest first.

Largest prefixes originated by AS25
PrefixAddressesVisibility
128.32.0.0/1665.5k80/80
136.152.0.0/1665.5k80/80
169.229.0.0/1665.5k80/80
169.229.176.0/204.1k80/80
169.236.240.0/212k80/80
208.68.240.0/221k80/80
192.150.186.0/2351280/80
192.154.4.0/2351280/80
67.21.36.0/2425680/80
192.12.234.0/2425680/80

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