subnet.im

AS146745China Education and Research Network (CERNET)

ChinaRegistryAPNIC

As of 10th November 2026, AS146745 (China Education and Research Network…), a network registered in China with APNIC, originates 1 IPv6 prefix. It is seen behind 1 upstream network, most often AS38255 (China Education and Research Network…). 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, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

0

IPv6 prefixes

1

IPv4 addresses

0

IPv6 /64s

4.3B

Upstream graph

The networks AS146745 is seen behind, one and two hops out, drawn from real AS paths.

AS146745Toward the internet core
Upstream graph for AS146745: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS146745China Education a…This networkAS38255China Education a…AS6939Hurricane Electri…AS23911China Next Genera…

Networks observed one and two hops upstream of AS146745 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 AS146745
NetworkCountryRelationshipPathsVantage pts
AS38255China Education and Research Network (CERNET)CNPeer6161

Prefixes

The largest blocks AS146745 originates, widest first.

Largest prefixes originated by AS146745
PrefixAddressesVisibility
240a:afff::/324.3B × /6461/63

Routing health

How AS146745'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
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%1
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 11th Oct 2026.

No announcement by AS146745 started or stopped in this period.

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