SUBNET.IM

AS721United States Department of Defense (DoD)

United StatesRegistryARINTypeCarrier

At a glance

IPv4 prefixes

237

IPv6 prefixes

2

IPv4 addresses

73.1M

IPv6 /64s

8.6B

Upstream graph

The networks AS721 is seen behind, one and two hops out, drawn from real AS paths.

AS721Toward the internet core
Upstream graph for AS721: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS721United States Dep…This networkAS3356Lumen (Level 3)AS2914NTT America, Inc.AS3549Lumen (fka. Globa…

Networks observed one and two hops upstream of AS721 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

8

adjacent networks

Upstreams
113%
Peers
450%
Downstreams
338%

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

Upstreams of AS721
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer1,014,798142

Prefixes

All 239

The largest blocks AS721 originates, widest first.

Largest prefixes originated by AS721
PrefixAddressesVisibility
55.0.0.0/816.8M78/80
214.0.0.0/816.8M78/80
215.0.0.0/98.4M78/80
132.0.0.0/104.2M78/80
131.32.0.0/112.1M78/80
132.96.0.0/112.1M78/80
205.64.0.0/112.1M78/80
132.80.0.0/121M78/80
132.128.0.0/121M78/80
138.144.0.0/121M78/80

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