subnet.im

AS24400Shanghai Mobile Communications Co.,Ltd.

ChinaRegistryAPNICTypeCarrier

As of 26th September 2026, AS24400 (Shanghai Mobile Communications Co.,Ltd.), a transit carrier registered in China with APNIC, originates 539 IPv4 prefixes covering 1.1M addresses and 602 IPv6 prefixes. By IPv4 address space that makes it the 428th-largest of the 79,480 networks we see originating IPv4, and the 36th-largest of 607 in China. It is seen behind 1 upstream network, most often AS9808 (China Mobile Backbone), and in front of 36 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

539

IPv6 prefixes

602

IPv4 addresses

1.1M

IPv6 /64s

189B

Upstream graph

The networks AS24400 is seen behind, one and two hops out, drawn from real AS paths.

AS24400Toward the internet core
Upstream graph for AS24400: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS24400Shanghai Mobile C…This networkAS9808China Mobile Back…AS58453China Mobile Inte…AS58807China Mobile Inte…

Networks observed one and two hops upstream of AS24400 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

81

adjacent networks

Upstreams
11%
Peers
4454%
Downstreams
3644%

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

Upstreams of AS24400
NetworkCountryRelationshipPathsVantage pts
AS9808China Mobile BackboneCNPeer91,257144

Prefixes

All 1,141

The largest blocks AS24400 originates, widest first.

Largest prefixes originated by AS24400
PrefixAddressesVisibility
117.143.0.0/1665.5k81/81
117.144.0.0/1665.5k81/81
117.184.0.0/1665.5k80/81
117.186.0.0/1665.5k81/81
120.204.0.0/1665.5k81/81
183.192.0.0/1665.5k81/81
183.193.0.0/1665.5k81/81
183.194.0.0/1665.5k81/81
183.195.0.0/1665.5k80/81
117.131.0.0/1732.8k81/81

Routing health

How AS24400'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%1,141
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more99.6%1,137
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.4%4

Prefix sizes

IPv4 — 539 prefixes

IPv6 — 602 prefixes

  • /318.6B × /643.0%18
  • /324.3B × /641.3%8
  • /4016.8M × /641.8%11
  • /441M × /6446.2%278
  • /4865.5k × /6447.7%287

Recent changes

Announcements that started or stopped since 27th Aug 2026.

8 announced and 13 withdrawn in all; the most recent are shown.

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