subnet.im

AS59019Beijing Kingsoft Cloud Internet Technology Co., Ltd

ChinaRegistryAPNICTypeContent

As of 27th September 2026, AS59019 (Beijing Kingsoft Cloud Internet…), a content network registered in China with APNIC, originates 50 IPv4 prefixes covering 190k addresses and 25 IPv6 prefixes. By IPv4 address space that makes it the 1,419th-largest of the 79,525 networks we see originating IPv4, and the 86th-largest of 607 in China. It is seen behind 7 upstream networks, most often AS23724 (China Telecom Beijing IDC Network) and AS58466 (CHINANET Guangdong province network). 99% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 75% of its routes reach at least 90% of full-feed peers, and 35 prefixes are also originated by another network.

At a glance

IPv4 prefixes

50

IPv6 prefixes

25

IPv4 addresses

190k

IPv6 /64s

5.4B

Upstream graph

The networks AS59019 is seen behind, one and two hops out, drawn from real AS paths.

AS59019Toward the internet core
Upstream graph for AS59019: 9 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS59019Beijing Kingsoft …This networkAS4811China Telecom Sha…AS23724China Telecom Bei…AS58466CHINANET Guangdon…AS58542China Telecom Tia…AS133111CERNET New Techno…AS4812China Telecom Sha…AS4134China Telecom Bac…AS4538China Education a…AS23910China Next Genera…

Networks observed one and two hops upstream of AS59019 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

18

adjacent networks

Upstreams
739%
Peers
1161%
Downstreams
00%

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

Upstreams of AS59019
NetworkCountryRelationshipPathsVantage pts
AS23724China Telecom Beijing IDC NetworkCNPeer1,999144
AS58466CHINANET Guangdong province networkCNPeer1,00863
AS58542China Telecom Tianjin Province IDC NetworkCNPeer80681
AS4811China Telecom Shanghai IDC NetworkCNPeer25381
AS133111CERNET New Technology Co., LtdCNPeer23163
AS9808China Mobile BackboneCNPeer284
AS17621China Unicom Shanghai networkCNPeer2211

Prefixes

All 75

The largest blocks AS59019 originates, widest first.

Largest prefixes originated by AS59019
PrefixAddressesVisibility
110.43.0.0/1665.5k81/81
120.92.0.0/1732.8k4/81
120.92.128.0/1816.4k81/81
110.43.32.0/198.2k4/81
110.43.128.0/198.2k4/81
110.43.240.0/204.1k4/81
120.92.224.0/204.1k10/81
110.43.184.0/212k81/81
110.43.216.0/212k4/81
120.92.16.0/212k79/81

Routing health

How AS59019'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

  • Valid98.7%74
  • Invalid1.3%1
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more74.7%56
  • Partially propagated40% to 90%1.3%1
  • Seen by few peersUnder 40%24.0%18

Prefix sizes

IPv4 — 50 prefixes

IPv6 — 25 prefixes

  • /324.3B × /644.0%1
  • /36268M × /6412.0%3
  • /4016.8M × /6460.0%15
  • /4865.5k × /6424.0%6

Recent changes

Announcements that started or stopped since 28th Aug 2026.

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