subnet.im

AS131325CHINATELECOM JIANGSU province NANTONG MAN network

ChinaRegistryAPNIC

As of 27th September 2026, AS131325 (CHINATELECOM JIANGSU province NANTONG…), a network registered in China with APNIC, originates 55 IPv4 prefixes covering 20k addresses and 9 IPv6 prefixes. By IPv4 address space that makes it the 7,089th-largest of the 79,523 networks we see originating IPv4, and the 220th-largest of 607 in China. It is seen behind 1 upstream network, most often AS4134 (China Telecom Backbone). 92% of its announcements have a valid RPKI ROA; 2 are RPKI-invalid. 97% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

55

IPv6 prefixes

9

IPv4 addresses

20k

IPv6 /64s

85.1M

Upstream graph

The networks AS131325 is seen behind, one and two hops out, drawn from real AS paths.

AS131325Toward the internet core
Upstream graph for AS131325: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS131325CHINATELECOM JIAN…This networkAS4134China Telecom Bac…AS1299Arelion (fka. Tel…AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS131325 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 AS131325
NetworkCountryRelationshipPathsVantage pts
AS4134China Telecom BackboneCNPeer4,873144

Prefixes

All 64

The largest blocks AS131325 originates, widest first.

Largest prefixes originated by AS131325
PrefixAddressesVisibility
49.67.72.0/221k81/81
61.147.224.0/221k81/81
103.52.176.0/221k81/81
114.232.92.0/221k81/81
180.121.80.0/221k81/81
221.227.220.0/221k81/81
45.113.24.0/2351281/81
45.113.26.0/2351281/81
61.147.222.0/2351281/81
114.232.222.0/2351281/81

Routing health

How AS131325'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

  • Valid92.2%59
  • Invalid3.1%2
  • No ROA4.7%3

Propagation

  • Globally propagated90% of full-feed peers or more96.9%62
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%3.1%2

Prefix sizes

IPv4 — 55 prefixes

IPv6 — 9 prefixes

  • /4016.8M × /6455.6%5
  • /441M × /6411.1%1
  • /4865.5k × /6433.3%3

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Announced61.147.219.0/2422nd Sept 2026
  • Withdrawn240e:979:9508::/4821st Sept 2026

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