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AS5927United States Department of Defense (DoD)

United StatesRegistryARIN

As of 22nd October 2026, AS5927 (United States Department of Defense…), a network registered in the United States with ARIN, originates 24 IPv4 prefixes covering 6.1k addresses and 9 IPv6 prefixes. By IPv4 address space that makes it the 13,895th-largest of the 79,663 networks we see originating IPv4, and the 4,045th-largest of 18,476 in the United States. It is seen behind 3 upstream networks, most often AS27064 (Defense Information Systems Agency…) and AS27065 (United States Department of Defense…). None of its announcements have a valid RPKI ROA. 97% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

24

IPv6 prefixes

9

IPv4 addresses

6.1k

IPv6 /64s

590k

Upstream graph

The networks AS5927 is seen behind, one and two hops out, drawn from real AS paths.

AS5927Toward the internet core
Upstream graph for AS5927: 4 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS5927United States Dep…This networkAS27064Defense Informati…AS27065United States Dep…AS27066United States Dep…AS721United States Dep…

Networks observed one and two hops upstream of AS5927 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

6

adjacent networks

Upstreams
350%
Peers
350%
Downstreams
00%

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

Upstreams of AS5927
NetworkCountryRelationshipPathsVantage pts
AS27064Defense Information Systems Agency (DISA)USPeer1,657140
AS27065United States Department of Defense (DoD)USPeer360140
AS27066United States Department of Defense (DoD)USPeer325140

Prefixes

All 33

The largest blocks AS5927 originates, widest first.

Largest prefixes originated by AS5927
PrefixAddressesVisibility
192.112.36.0/2425677/77
192.112.38.0/2425677/77
192.240.128.0/2425677/77
192.240.130.0/2425677/77
192.240.131.0/2425677/77
192.240.132.0/2425677/77
192.240.133.0/2425677/77
192.240.134.0/2425677/77
192.240.135.0/2425677/77
192.240.137.0/2425677/77

Routing health

How AS5927'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%33

Propagation

  • Globally propagated90% of full-feed peers or more97.0%32
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%3.0%1

Prefix sizes

IPv4 — 24 prefixes

IPv6 — 9 prefixes

  • /4865.5k × /64100.0%9

Recent changes

Announcements that started or stopped since 22nd Sept 2026.

No announcement by AS5927 started or stopped in this period.

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