subnet.im

AS136572Office of The Chief Information Officer (OCIO)

AustraliaRegistryAPNIC

As of 27th September 2026, AS136572 (Office of The Chief Information Officer…), a network registered in Australia with APNIC, originates 22 IPv4 prefixes covering 75.8k addresses. By IPv4 address space that makes it the 2,882nd-largest of the 79,525 networks we see originating IPv4, and the 57th-largest of 1,661 in Australia. It is seen behind 1 upstream network, most often AS2764 (AAPT Limited). 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

22

IPv6 prefixes

0

IPv4 addresses

75.8k

IPv6 /64s

0

Upstream graph

The networks AS136572 is seen behind, one and two hops out, drawn from real AS paths.

AS136572Toward the internet core
Upstream graph for AS136572: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS136572Office of The Chi…This networkAS2764AAPT LimitedAS4826Vocus Connect Int…AS58511Swoop (Anycast Gl…

Networks observed one and two hops upstream of AS136572 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 AS136572
NetworkCountryRelationshipPathsVantage pts
AS2764AAPT LimitedAUPeer1,76080

Prefixes

The largest blocks AS136572 originates, widest first.

Largest prefixes originated by AS136572
PrefixAddressesVisibility
143.216.0.0/1665.5k80/81
143.216.32.0/212k80/81
143.216.88.0/221k80/81
143.216.96.0/221k80/81
203.26.120.0/221k80/81
143.216.42.0/2351280/81
143.216.46.0/2351280/81
203.6.146.0/2351280/81
143.216.38.0/2425680/81
143.216.41.0/2425680/81

Routing health

How AS136572'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%22

Propagation

  • Globally propagated90% of full-feed peers or more100.0%22
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 22 prefixes

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS136572 started or stopped in this period.

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