subnet.im

AS131536Shanghai Great Wall Broadband Network Service Co., Ltd.

ChinaRegistryAPNIC

As of 11th November 2026, AS131536 (Shanghai Great Wall Broadband Network…), a network registered in China with APNIC, originates 12 IPv4 prefixes covering 4.1k addresses. By IPv4 address space that makes it the 17,380th-largest of the 80,743 networks we see originating IPv4, and the 311th-largest of 617 in China. It is seen behind 1 upstream network, most often AS24400 (Shanghai Mobile Communications Co.,Ltd.). 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

12

IPv6 prefixes

0

IPv4 addresses

4.1k

IPv6 /64s

0

Upstream graph

The networks AS131536 is seen behind, one and two hops out, drawn from real AS paths.

AS131536Toward the internet core
Upstream graph for AS131536: 2 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS131536Shanghai Great Wa…This networkAS24400Shanghai Mobile C…AS9808China Mobile Back…

Networks observed one and two hops upstream of AS131536 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 AS131536
NetworkCountryRelationshipPathsVantage pts
AS24400Shanghai Mobile Communications Co.,Ltd.CNPeer91276

Prefixes

The largest blocks AS131536 originates, widest first.

Largest prefixes originated by AS131536
PrefixAddressesVisibility
211.161.192.0/221k76/76
211.161.102.0/2351276/76
124.14.5.0/2425676/76
124.14.8.0/2425676/76
124.14.12.0/2425676/76
124.14.13.0/2425676/76
124.14.15.0/2425676/76
124.14.22.0/2425676/76
211.161.101.0/2425676/76
211.161.203.0/2425676/76

Routing health

How AS131536'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%12
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%12
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 12 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS131536 started or stopped in this period.

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