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AS745Air Force Systems Networking

United StatesRegistryARIN

As of 23rd October 2026, AS745 (Air Force Systems Networking), a network registered in the United States with ARIN, originates 78 IPv4 prefixes covering 33.3k addresses. By IPv4 address space that makes it the 5,367th-largest of the 79,659 networks we see originating IPv4, and the 1,843rd-largest of 18,482 in the United States. It is seen behind 1 upstream network, most often AS27064 (Defense Information Systems Agency…), and in front of 8 downstream networks. 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

78

IPv6 prefixes

0

IPv4 addresses

33.3k

IPv6 /64s

0

Upstream graph

The networks AS745 is seen behind, one and two hops out, drawn from real AS paths.

AS745Toward the internet core
Upstream graph for AS745: 2 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS745Air Force Systems…This networkAS27064Defense Informati…AS721United States Dep…

Networks observed one and two hops upstream of AS745 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

18

adjacent networks

Upstreams
16%
Peers
950%
Downstreams
844%

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

Upstreams of AS745
NetworkCountryRelationshipPathsVantage pts
AS27064Defense Information Systems Agency (DISA)USPeer35,34377

Prefixes

All 78

The largest blocks AS745 originates, widest first.

Largest prefixes originated by AS745
PrefixAddressesVisibility
134.152.88.0/221k77/77
134.152.100.0/221k77/77
155.27.84.0/221k77/77
155.27.88.0/221k77/77
155.27.92.0/221k77/77
155.27.96.0/221k77/77
155.27.100.0/221k77/77
155.27.104.0/221k77/77
155.27.128.0/221k77/77
155.27.140.0/221k77/77

Routing health

How AS745'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%78

Propagation

  • Globally propagated90% of full-feed peers or more100.0%78
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 78 prefixes

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

No announcement by AS745 started or stopped in this period.

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