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AS205152Han Dai

ChinaRegistryRIPE NCC

As of 11th November 2026, AS205152 (Han Dai), a network registered in China with RIPE NCC, originates 1 IPv4 prefix covering 256 addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 59,976th-largest of the 80,743 networks we see originating IPv4, and the 532nd-largest of 617 in China. It is seen behind 2 upstream networks, most often AS53667 (FranTech Solutions) and AS20473 (The Constant Company, LLC). 75% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

1

IPv6 prefixes

3

IPv4 addresses

256

IPv6 /64s

1.2M

Upstream graph

The networks AS205152 is seen behind, one and two hops out, drawn from real AS paths.

AS205152Toward the internet core
Upstream graph for AS205152: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS205152Han DaiThis networkAS20473The Constant Comp…AS53667FranTech SolutionsAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS174Cogent Communicat…AS6939Hurricane Electri…

Networks observed one and two hops upstream of AS205152 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

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS205152
NetworkCountryRelationshipPathsVantage pts
AS53667FranTech SolutionsUSPeer201139
AS20473The Constant Company, LLCUSPeer6262

Prefixes

The largest blocks AS205152 originates, widest first.

Largest prefixes originated by AS205152
PrefixAddressesVisibility
44.30.7.0/2425676/76
2a0e:b107:e0::/441M × /6463/63
2a0b:4340:1304::/4865.5k × /6462/63
2a0b:4340:1340::/4865.5k × /6462/63

Routing health

How AS205152'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

  • Valid75.0%3
  • Invalid0.0%0
  • No ROA25.0%1

Propagation

  • Globally propagated90% of full-feed peers or more100.0%4
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 1 prefixes

IPv6 — 3 prefixes

  • /441M × /6433.3%1
  • /4865.5k × /6466.7%2

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS205152 started or stopped in this period.

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