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AS133731Cloudie Limited

Hong Kong SAR ChinaRegistryAPNIC

As of 26th September 2026, AS133731 (Cloudie Limited), a network registered in Hong Kong SAR China with APNIC, originates 12 IPv4 prefixes covering 7.9k addresses. By IPv4 address space that makes it the 12,562nd-largest of the 79,516 networks we see originating IPv4, and the 186th-largest of 734 in Hong Kong SAR China. It is seen behind 3 upstream networks, most often AS136826 (Indonesia Network Information Center) and AS55933 (Cloudie Limited). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 33% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

12

IPv6 prefixes

0

IPv4 addresses

7.9k

IPv6 /64s

0

Upstream graph

The networks AS133731 is seen behind, one and two hops out, drawn from real AS paths.

AS133731Toward the internet core
Upstream graph for AS133731: 7 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS133731Cloudie LimitedThis networkAS55933Cloudie LimitedAS134196ANYUN INTERNET TE…AS136826Indonesia Network…AS4635HKIX Route ServersAS3356Lumen (Level 3)AS932XNNET LLCAS18013ASLINE LIMITED

Networks observed one and two hops upstream of AS133731 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 AS133731
NetworkCountryRelationshipPathsVantage pts
AS136826Indonesia Network Information CenterIDPeer51375
AS55933Cloudie LimitedHKPeer9315
AS134196ANYUN INTERNET TECHNOLOGY (HK) CO.,LIMITEDHKPeer168

Prefixes

The largest blocks AS133731 originates, widest first.

Largest prefixes originated by AS133731
PrefixAddressesVisibility
43.240.12.0/221k81/81
103.39.108.0/221k81/81
103.51.144.0/221k81/81
103.231.12.0/221k81/81
43.240.12.0/2351247/81
103.39.108.0/2351247/81
103.39.110.0/2351247/81
103.51.144.0/2351247/81
103.51.146.0/2351247/81
103.231.12.0/235128/81

Routing health

How AS133731'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

  • Valid100.0%12
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more33.3%4
  • Partially propagated40% to 90%50.0%6
  • Seen by few peersUnder 40%16.7%2

Prefix sizes

IPv4 — 12 prefixes

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn103.39.108.0/2422nd Sept 2026
  • Withdrawn43.240.12.0/2422nd Sept 2026
  • Announced43.240.12.0/2422nd Sept 2026
  • Withdrawn103.231.14.0/2421st Sept 2026
  • Withdrawn103.231.15.0/2421st Sept 2026
  • Withdrawn103.39.111.0/2421st Sept 2026
  • Withdrawn82.23.246.0/2421st Sept 2026

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