subnet.im

AS58519China Telecom Cloud

ChinaRegistryAPNICTypeContent

As of 27th September 2026, AS58519 (China Telecom Cloud), a content network registered in China with APNIC, originates 261 IPv4 prefixes covering 566k addresses and 12 IPv6 prefixes. By IPv4 address space that makes it the 658th-largest of the 79,536 networks we see originating IPv4, and the 53rd-largest of 607 in China. It is seen behind 1 upstream network, most often AS4134 (China Telecom Backbone). 97% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 95% of its routes reach at least 90% of full-feed peers, and 13 prefixes are also originated by another network.

At a glance

IPv4 prefixes

261

IPv6 prefixes

12

IPv4 addresses

566k

IPv6 /64s

1.5B

Upstream graph

The networks AS58519 is seen behind, one and two hops out, drawn from real AS paths.

AS58519Toward the internet core
Upstream graph for AS58519: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS58519China Telecom Clo…This networkAS4134China Telecom Bac…AS1299Arelion (fka. Tel…AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS58519 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

3

adjacent networks

Upstreams
133%
Peers
267%
Downstreams
00%

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

Upstreams of AS58519
NetworkCountryRelationshipPathsVantage pts
AS4134China Telecom BackboneCNPeer21,918146

Prefixes

All 273

The largest blocks AS58519 originates, widest first.

Largest prefixes originated by AS58519
PrefixAddressesVisibility
113.125.0.0/1665.5k82/82
140.246.0.0/1665.5k82/82
150.223.0.0/1665.5k82/82
182.42.0.0/1665.5k82/82
182.43.128.0/1732.8k82/82
116.63.128.0/1816.4k70/82
182.43.64.0/1816.4k82/82
182.44.0.0/1816.4k82/82
42.123.64.0/198.2k82/82
42.123.96.0/198.2k82/82

Routing health

How AS58519'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

  • Valid97.4%266
  • Invalid0.0%0
  • No ROA2.6%7

Propagation

  • Globally propagated90% of full-feed peers or more94.9%259
  • Partially propagated40% to 90%4.8%13
  • Seen by few peersUnder 40%0.4%1

Prefix sizes

IPv4 — 261 prefixes

IPv6 — 12 prefixes

  • /36268M × /6441.7%5
  • /37134M × /648.3%1
  • /441M × /6433.3%4
  • /4865.5k × /6416.7%2

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn36.114.0.0/1621st Sept 2026

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