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AS151823China Telecom

ChinaRegistryAPNIC

As of 27th September 2026, AS151823 (China Telecom), a network registered in China with APNIC, originates 15 IPv4 prefixes covering 37.6k addresses and 5 IPv6 prefixes. By IPv4 address space that makes it the 5,055th-largest of the 79,523 networks we see originating IPv4, and the 192nd-largest of 607 in China. It is seen behind 1 upstream network, most often AS4134 (China Telecom Backbone). 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

15

IPv6 prefixes

5

IPv4 addresses

37.6k

IPv6 /64s

352M

Upstream graph

The networks AS151823 is seen behind, one and two hops out, drawn from real AS paths.

AS151823Toward the internet core
Upstream graph for AS151823: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS151823China TelecomThis networkAS4134China Telecom Bac…AS1299Arelion (fka. Tel…AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS151823 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS151823
NetworkCountryRelationshipPathsVantage pts
AS4134China Telecom BackboneCNPeer1,530144

Prefixes

The largest blocks AS151823 originates, widest first.

Largest prefixes originated by AS151823
PrefixAddressesVisibility
175.12.0.0/1816.4k81/81
175.12.64.0/1816.4k81/81
175.12.64.0/221k81/81
175.12.96.0/221k81/81
175.12.58.0/2425681/81
175.12.59.0/2425681/81
175.12.60.0/2425681/81
175.12.61.0/2425681/81
175.12.62.0/2425681/81
175.12.63.0/2425681/81

Routing health

How AS151823'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%20
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%20
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 15 prefixes

IPv6 — 5 prefixes

  • /36268M × /6420.0%1
  • /3933.6M × /6420.0%1
  • /4016.8M × /6460.0%3

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS151823 started or stopped in this period.

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