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AS136557Host Universal Pty Ltd

AustraliaRegistryAPNICTypeEyeball

As of 10th November 2026, AS136557 (Host Universal Pty Ltd), an access network registered in Australia with APNIC, originates 88 IPv4 prefixes covering 22.8k addresses and 50 IPv6 prefixes. By IPv4 address space that makes it the 6,659th-largest of the 80,733 networks we see originating IPv4, and the 122nd-largest of 1,696 in Australia. It is seen behind 33 upstream networks, most often AS4637 (Telstra International Limited) and AS2914 (NTT America, Inc.), and in front of 59 downstream networks. 36% of its announcements have a valid RPKI ROA; 2 are RPKI-invalid. 95% of its routes reach at least 90% of full-feed peers, and 2 prefixes are also originated by another network.

At a glance

IPv4 prefixes

88

IPv6 prefixes

50

IPv4 addresses

22.8k

IPv6 /64s

3.5M

Upstream graph

The networks AS136557 is seen behind, one and two hops out, drawn from real AS paths.

Networks observed one and two hops upstream of AS136557 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

622

adjacent networks

Upstreams
335%
Peers
53085%
Downstreams
599%

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

Prefixes

All 138

The largest blocks AS136557 originates, widest first.

Largest prefixes originated by AS136557
PrefixAddressesVisibility
103.225.64.0/2351276/76
5.183.77.0/2425676/76
31.58.195.0/2425655/76
31.58.196.0/2425655/76
31.58.197.0/2425655/76
31.58.198.0/2425655/76
45.67.86.0/2425676/76
45.125.247.0/2425676/76
45.128.12.0/2425676/76
45.135.249.0/2425676/76

Routing health

How AS136557'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

  • Valid36.2%50
  • Invalid1.4%2
  • No ROA62.3%86

Propagation

  • Globally propagated90% of full-feed peers or more94.9%131
  • Partially propagated40% to 90%2.9%4
  • Seen by few peersUnder 40%2.2%3

Prefix sizes

IPv6 — 50 prefixes

  • /46262k × /642.0%1
  • /4865.5k × /6498.0%49

Recent changes

Announcements that started or stopped since 12th Oct 2026.

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