SUBNET.IM

AS25829Smithsonian Institution

United StatesRegistryARIN

At a glance

IPv4 prefixes

6

IPv6 prefixes

1

IPv4 addresses

63.7k

IPv6 /64s

65.5k

Upstream graph

The networks AS25829 is seen behind, one and two hops out, drawn from real AS paths.

AS25829Toward the internet core
Upstream graph for AS25829: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS25829Smithsonian Insti…This networkAS174Cogent Communicat…AS3356Lumen (Level 3)AS11164Internet2 I2PXAS11537Internet2AS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS2152CENIC - CalRENAS2497Internet Initiati…AS293ESnetAS2153CENIC

Networks observed one and two hops upstream of AS25829 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

11

adjacent networks

Upstreams
436%
Peers
655%
Downstreams
19%

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

Upstreams of AS25829
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer34444
AS174Cogent Communications, LLCUSPeer32292
AS11164Internet2 I2PXUSPeer7812
AS11537Internet2USPeer182

Prefixes

The largest blocks AS25829 originates, widest first.

Largest prefixes originated by AS25829
PrefixAddressesVisibility
160.111.0.0/1732.8k79/80
160.111.128.0/1816.4k79/80
160.111.192.0/198.2k79/80
160.111.240.0/204.1k79/80
160.111.224.0/212k79/80
38.127.143.0/2425679/80
2001:550:7708::/4865.5k × /6457/62

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