SUBNET.IM

AS399Air Force Systems Networking

United StatesRegistryARIN

At a glance

IPv4 prefixes

9

IPv6 prefixes

0

IPv4 addresses

153k

IPv6 /64s

0

Upstream graph

The networks AS399 is seen behind, one and two hops out, drawn from real AS paths.

AS399Toward the internet core
Upstream graph for AS399: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS399Air Force Systems…This networkAS27066United States Dep…AS721United States Dep…AS27064Defense Informati…

Networks observed one and two hops upstream of AS399 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 AS399
NetworkCountryRelationshipPathsVantage pts
AS27066United States Department of Defense (DoD)USPeer68880

Prefixes

The largest blocks AS399 originates, widest first.

Largest prefixes originated by AS399
PrefixAddressesVisibility
131.38.0.0/1665.5k80/80
131.49.0.0/1665.5k80/80
143.146.192.0/198.2k80/80
143.156.192.0/198.2k80/80
143.147.80.0/212k80/80
143.157.80.0/212k80/80
132.3.0.0/221k80/80
131.38.120.0/2425680/80
132.7.159.0/2425648/80

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