subnet.im

AS5376United States Department of Defense (DoD)

United StatesRegistryARIN

As of 22nd October 2026, AS5376 (United States Department of Defense…), a network registered in the United States with ARIN, originates 1 IPv4 prefix covering 65.5k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 3,623rd-largest of the 79,663 networks we see originating IPv4, and the 1,274th-largest of 18,476 in the United States. It is seen behind 1 upstream network, most often AS27064 (Defense Information Systems Agency…). None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

1

IPv6 prefixes

1

IPv4 addresses

65.5k

IPv6 /64s

65.5k

Upstream graph

The networks AS5376 is seen behind, one and two hops out, drawn from real AS paths.

AS5376Toward the internet core
Upstream graph for AS5376: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS5376United States Dep…This networkAS27064Defense Informati…AS721United States Dep…AS27065United States Dep…

Networks observed one and two hops upstream of AS5376 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 AS5376
NetworkCountryRelationshipPathsVantage pts
AS27064Defense Information Systems Agency (DISA)USPeer140140

Prefixes

The largest blocks AS5376 originates, widest first.

Largest prefixes originated by AS5376
PrefixAddressesVisibility
214.8.0.0/1665.5k77/77
2608:121::/4865.5k × /6463/64

Routing health

How AS5376's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%2

Propagation

  • Globally propagated90% of full-feed peers or more100.0%2
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 1 prefixes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 22nd Sept 2026.

No announcement by AS5376 started or stopped in this period.

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