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AS numbers

AS138421 China Unicom

AS138421 is operated by China Unicom and registered with APNIC (CN) since 2018-11-13.

It announces 250 IPv4 and 40 IPv6 prefixes, 97% of them RPKI valid.

RIPE RIS sees 1 upstream and peer networks and 3 downstream networks next to it.

Run the full network report BGP lookup WHOIS PeeringDB lookup
NameChina Unicom
Registry handleCU-CN-AS
Registry (RIR)APNIC
CountryChina (CN)
Delegated on2018-11-13
Prefixes (IPv4 / IPv6)250 / 40
RPKI valid97% (283 / 290)
Upstreams and peers1
Downstream networks3

Routing health

  • AS138421 announces 250 IPv4 and 40 IPv6 prefixes.
  • 283 of 290 announced prefixes are RPKI valid.
  • 7 announced prefixes are not covered by a ROA of AS138421 (they may have none, or another network’s).
  • One upstream or peer seen (AS4837): an outage there takes the whole network off the internet.

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 290

  • 1.1.8.0/24
  • 43.240.124.0/24
  • 43.240.125.0/24
  • 43.240.126.0/23
  • 43.240.128.0/23
  • 43.240.130.0/23
  • 43.240.192.0/22
  • 43.254.44.0/23
  • 43.254.46.0/23
  • 43.254.104.0/24
  • 43.254.105.0/24
  • 43.254.106.0/24
  • 43.254.144.0/24
  • 43.254.145.0/24
  • 43.254.146.0/24
  • 43.254.147.0/24
  • 43.254.148.0/22
  • 45.253.24.0/24
  • 45.253.25.0/24
  • 45.253.26.0/24
  • 45.253.27.0/24
  • 45.253.32.0/24
  • 58.246.165.0/24
  • 58.246.207.0/24
  • 58.247.254.0/23
  • 103.6.222.0/24
  • 103.6.223.0/24
  • 103.36.174.0/23
  • 103.68.128.0/22
  • 103.192.212.0/22
  • 103.220.164.0/22
  • 103.220.167.0/24
  • 103.222.40.0/24
  • 103.222.41.0/24
  • 103.222.42.0/24
  • 103.222.43.0/24
  • 112.64.32.0/24
  • 112.64.33.0/24
  • 112.64.34.0/24
  • 112.64.35.0/24
  • 112.64.45.0/24
  • 112.64.64.0/24
  • 112.64.112.0/22
  • 112.64.212.0/22
  • 112.65.64.0/24
  • 112.65.66.0/24
  • 112.65.72.0/24
  • 112.65.73.0/24
  • 112.65.74.0/24
  • 112.65.75.0/24
  • 112.65.94.0/24
  • 112.65.112.0/24
  • 112.65.114.0/24
  • 112.65.116.0/23
  • 112.65.116.0/24
  • 112.65.117.0/24
  • 112.65.118.0/24
  • 112.65.216.0/24
  • 112.65.217.0/24
  • 112.65.219.0/24
  • 112.65.220.0/24
  • 112.65.222.0/23
  • 112.65.222.0/24
  • 112.65.223.0/24
  • 112.65.224.0/23
  • 112.65.226.0/24
  • 112.65.227.0/24
  • 112.65.228.0/22
  • 112.65.232.0/23
  • 112.65.235.0/24
  • 112.65.237.0/24
  • 112.65.238.0/24
  • 112.65.240.0/20
  • 114.67.64.0/18
  • 116.63.32.0/19
  • 116.63.96.0/20
  • 116.63.112.0/21
  • 116.63.120.0/21
  • 116.63.192.0/18
  • 116.128.149.0/24
  • 116.128.189.0/24
  • 116.128.190.0/23
  • 116.128.190.0/24
  • 116.128.191.0/24
  • 116.196.192.0/21
  • 116.198.144.0/20
  • 116.198.160.0/21
  • 116.198.168.0/21
  • 116.198.176.0/22
  • 116.198.180.0/22
  • 122.9.64.0/19
  • 122.9.176.0/20
  • 139.159.96.0/21
  • 139.159.108.0/23
  • 139.159.110.0/24
  • 139.227.231.0/24
  • 140.206.167.0/24
  • 140.206.200.0/22
  • 140.206.200.0/24
  • 140.206.201.0/24

Showing the first 100.

Upstreams and peers 1

The networks RIPE RIS sees next to AS138421 in BGP paths, the most visible first.

More about AS138421

Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-15 09:46 UTC. The country is where the AS number was registered, not necessarily where the network operates.