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AS133929TWOWIN CO., LIMITED

Hong Kong SAR ChinaRegistryAPNIC

As of 10th November 2026, AS133929 (TWOWIN CO., LIMITED), a network registered in Hong Kong SAR China with APNIC, originates 73 IPv4 prefixes covering 28.9k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 5,868th-largest of the 80,723 networks we see originating IPv4, and the 81st-largest of 759 in Hong Kong SAR China. It is seen behind 10 upstream networks, most often AS13335 (Cloudflare, Inc.) and AS135391 (Aofei Data International Co., Ltd.), and in front of 1 downstream network. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 99% 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

73

IPv6 prefixes

2

IPv4 addresses

28.9k

IPv6 /64s

131k

Upstream graph

The networks AS133929 is seen behind, one and two hops out, drawn from real AS paths.

AS133929Toward the internet core
Upstream graph for AS133929: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS133929TWOWIN CO., LIMIT…This networkAS6939Hurricane Electri…AS8220COLTAS13335Cloudflare, Inc.AS21859Zenlayer IncAS135391Aofei Data Intern…AS20130Depaul UniversityAS132337AxclusiveAS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS2914NTT America, Inc.AS4229Zenlayer IncAS151326DCConnect Communi…

Networks observed one and two hops upstream of AS133929 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

31

adjacent networks

Upstreams
1032%
Peers
2065%
Downstreams
13%

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

Upstreams of AS133929
NetworkCountryRelationshipPathsVantage pts
AS13335Cloudflare, Inc.USPeer2,42876
AS135391Aofei Data International Co., Ltd.HKPeer1,593102
AS6939Hurricane Electric LLCUSPeer1,469108
AS21859Zenlayer IncUSPeer87477
AS8220COLTGBPeer31133
AS9304HGC Global Communications LimitedHKPeer11876
AS9729iAdvantage LimitedHKPeer7676
AS24482SG.GSSGPeer132
AS4635HKIX Route ServersHKPeer64
AS49544i3D.net B.VNLPeer21

Prefixes

All 75

The largest blocks AS133929 originates, widest first.

Largest prefixes originated by AS133929
PrefixAddressesVisibility
43.229.116.0/221k76/76
45.200.104.0/221k76/76
103.48.140.0/221k76/76
103.91.156.0/221k76/76
103.99.72.0/221k76/76
103.252.16.0/221k76/76
123.253.44.0/221k76/76
43.229.116.0/2351276/76
43.229.118.0/2351276/76
45.200.104.0/2351276/76

Routing health

How AS133929'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%75
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more98.7%74
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%1.3%1

Prefix sizes

IPv4 — 73 prefixes

IPv6 — 2 prefixes

  • /4865.5k × /64100.0%2

Recent changes

Announcements that started or stopped since 11th Oct 2026.

No announcement by AS133929 started or stopped in this period.

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