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AS numbers

AS133111 CERNET New Technology Co., Ltd

AS133111 is operated by CERNET New Technology Co., Ltd and registered with APNIC (CN) since 2013-10-08.

It announces 8 IPv4 and 3 IPv6 prefixes, 81% of them RPKI valid.

RIPE RIS sees 3 upstream and peer networks and 8 downstream networks next to it.

NameCERNET New Technology Co., Ltd
Registry handleCNT-northChina
Registry (RIR)APNIC
CountryChina (CN)
Delegated on2013-10-08
Prefixes (IPv4 / IPv6)8 / 3
RPKI valid81% (9 / 11)
Upstreams and peers3
Downstream networks8

Routing health

  • AS133111 announces 8 IPv4 and 3 IPv6 prefixes.
  • 9 of 11 announced prefixes are RPKI valid.
  • 2 announced prefixes are not covered by a ROA of AS133111 (they may have none, or another network’s).
  • 3 upstreams and peers, 8 downstream networks seen.

For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.

Announced prefixes 11

  • 42.201.32.0/19
  • 42.201.33.0/24
  • 42.201.60.0/23
  • 42.201.62.0/23
  • 42.245.192.0/18
  • 42.245.221.0/24
  • 43.252.48.0/24
  • 103.81.200.0/22
  • 240d:4000::/21
  • 2400:a980::/29
  • 2403:a200:9999::/48

Upstreams and peers 3

The networks RIPE RIS sees next to AS133111 in BGP paths, the most visible first.

Peering

AS133111 is not in PeeringDB. Networks that peer at internet exchanges are expected to keep a record there with their policy, exchange addresses and contacts.

More about AS133111

Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-14 08:02 UTC. The country is where the AS number was registered, not necessarily where the network operates.