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Network

AS17621

ChinaCarrier

China Unicom Shanghai network

China Unicom Shanghai network announces 274 IPv4 prefixes (927.2K addresses) and 421 IPv6 prefixes from China. 98% of them are covered by valid RPKI records.

Prefixes

274 · 421

IPv4 · IPv6

Address space

927.2K

IPv4 addresses · 1.6M IPv6 /48s

RPKI

98% valid

4 invalid · 10 without a record

Peering

Open

0 exchanges · 0 facilities

Details

Network

Name
China Unicom Shanghai network
Holder
ChinaUnicom Hostmaster
Country
ChinaChina
Registry
APNIC
Registered
Sep 4, 200818 years ago
Website
chinaunicom.cn
UsersCloudflare Radar's estimate of people who reach the internet through this network.
About 6.6M
Abuse contact
hqs-ipabuse@chinaunicom.cn

Routing security

ASPAAn RPKI record listing the only networks allowed to be its upstream providers, so routers can reject leaked or forged paths.
Not published
RPKI coverageShare of its announcements that a signed record (ROA) authorizes.
681 of 695 valid
IncidentsPossible BGP hijacks (high-confidence detections) and route leaks involving this network in the last 30 days, from Cloudflare Radar.
6 hijacks of its prefixes6 hijacks by this network

AS17621 on Cloudflare Radar →PeeringDB →

Largest prefixes

695 announcements in all

IPv4

274
  1. 58.246.0.0/16RPKI valid
  2. 58.247.0.0/16RPKI valid
  3. 112.64.0.0/16RPKI valid
  4. 112.65.0.0/16RPKI valid
  5. 139.226.0.0/16RPKI valid
  6. 139.227.0.0/16RPKI valid
  7. 140.206.0.0/16RPKI valid
  8. 140.207.0.0/16RPKI valid
  9. 223.166.0.0/16RPKI valid
  10. 223.167.0.0/16RPKI valid
  11. 27.115.0.0/17RPKI valid
  12. 112.64.0.0/17RPKI valid
  13. 112.64.128.0/17RPKI valid
  14. 112.65.0.0/17RPKI valid
  15. 211.95.0.0/17RPKI valid
  16. 220.196.0.0/17RPKI valid
  17. 220.196.128.0/17RPKI valid
  18. 27.115.0.0/18RPKI valid
  19. 112.65.128.0/18RPKI valid
  20. 116.128.128.0/18RPKI valid
  21. 210.22.64.0/18RPKI valid
  22. 210.22.128.0/18RPKI valid
  23. 220.248.0.0/18RPKI valid
  24. 220.248.64.0/18RPKI valid