SUBNET.IM

AS391Air Force Systems Networking

United StatesRegistryARIN

At a glance

IPv4 prefixes

37

IPv6 prefixes

0

IPv4 addresses

285k

IPv6 /64s

0

Upstream graph

The networks AS391 is seen behind, one and two hops out, drawn from real AS paths.

AS391Toward the internet core
Upstream graph for AS391: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS391Air Force Systems…This networkAS27064Defense Informati…AS721United States Dep…AS27065United States Dep…

Networks observed one and two hops upstream of AS391 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 AS391
NetworkCountryRelationshipPathsVantage pts
AS27064Defense Information Systems Agency (DISA)USPeer2,95580

Prefixes

All 37

The largest blocks AS391 originates, widest first.

Largest prefixes originated by AS391
PrefixAddressesVisibility
128.202.0.0/1665.5k79/80
128.236.0.0/1665.5k80/80
137.0.0.0/1665.5k80/80
137.11.0.0/1665.5k80/80
131.15.48.0/204.1k80/80
131.15.64.0/204.1k80/80
131.15.40.0/212k80/80
131.15.144.0/212k80/80
131.15.160.0/212k80/80
143.141.96.0/221k80/80

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