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AS152920Zhao Chenglin

ChinaRegistryAPNIC

As of 27th September 2026, AS152920 (Zhao Chenglin), a network registered in China with APNIC, originates 7 IPv4 prefixes covering 2.3k addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 24,094th-largest of the 79,523 networks we see originating IPv4, and the 355th-largest of 607 in China. It is seen behind 2 upstream networks, most often AS20473 (The Constant Company, LLC) and AS139317 (Ningbo Dahuamao Information Technology…). Every one of its announcements has 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

7

IPv6 prefixes

3

IPv4 addresses

2.3k

IPv6 /64s

4.3B

Upstream graph

The networks AS152920 is seen behind, one and two hops out, drawn from real AS paths.

AS152920Toward the internet core
Upstream graph for AS152920: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS152920Zhao ChenglinThis networkAS20473The Constant Comp…AS139317Ningbo Dahuamao I…AS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS199310XIN BING XIANAS204211Shanghai Yingyun …

Networks observed one and two hops upstream of AS152920 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 AS152920
NetworkCountryRelationshipPathsVantage pts
AS20473The Constant Company, LLCUSPeer695145
AS139317Ningbo Dahuamao Information Technology Co LtdCNPeer6363

Prefixes

The largest blocks AS152920 originates, widest first.

Largest prefixes originated by AS152920
PrefixAddressesVisibility
151.247.148.0/2351281/81
156.237.104.0/2351281/81
87.76.221.0/2425681/81
87.76.222.0/2425681/81
144.225.186.0/2425681/81
154.91.158.0/2425681/81
154.91.159.0/2425681/81
2a0f:2706::/324.3B × /6464/64
2406:840:fcd0::/4865.5k × /6464/64
2406:840:fe96::/4865.5k × /6463/64

Routing health

How AS152920'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%10
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%10
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 7 prefixes

IPv6 — 3 prefixes

  • /324.3B × /6433.3%1
  • /4865.5k × /6466.7%2

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS152920 started or stopped in this period.

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