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AS140638China Telecom

ChinaRegistryAPNIC

As of 10th November 2026, AS140638 (China Telecom), a network registered in China with APNIC, originates 47 IPv4 prefixes covering 18.9k addresses and 65 IPv6 prefixes. By IPv4 address space that makes it the 7,417th-largest of the 80,723 networks we see originating IPv4, and the 223rd-largest of 617 in China. It is seen behind 1 upstream network, most often AS4134 (China Telecom Backbone). 96% of its announcements have a valid RPKI ROA; 4 are RPKI-invalid. 96% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

47

IPv6 prefixes

65

IPv4 addresses

18.9k

IPv6 /64s

220M

Upstream graph

The networks AS140638 is seen behind, one and two hops out, drawn from real AS paths.

AS140638Toward the internet core
Upstream graph for AS140638: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS140638China TelecomThis networkAS4134China Telecom Bac…AS1299Arelion (fka. Tel…AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS140638 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 AS140638
NetworkCountryRelationshipPathsVantage pts
AS4134China Telecom BackboneCNPeer7,295137

Prefixes

All 112

The largest blocks AS140638 originates, widest first.

Largest prefixes originated by AS140638
PrefixAddressesVisibility
117.61.0.0/204.1k76/76
117.61.56.0/212k76/76
117.61.56.0/221k76/76
117.61.62.0/2351276/76
117.61.64.0/2351276/76
36.113.178.0/2425676/76
36.113.179.0/2425676/76
36.113.180.0/2425676/76
36.113.181.0/2425676/76
36.113.182.0/2425676/76

Routing health

How AS140638'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

  • Valid96.4%108
  • Invalid3.6%4
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more96.4%108
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%3.6%4

Prefix sizes

IPv4 — 47 prefixes

IPv6 — 65 prefixes

  • /418.4M × /6410.8%7
  • /424.2M × /6440.0%26
  • /432.1M × /6427.7%18
  • /441M × /6421.5%14

Recent changes

Announcements that started or stopped since 11th Oct 2026.

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