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Network

AS4538

ChinaEyeball

China Education and Research Network Center

China Education and Research Network Center announces 5,151 IPv4 prefixes (17.2M addresses) and 313 IPv6 prefixes from China. 32% of them are covered by valid RPKI records.

Prefixes

5,151 · 313

IPv4 · IPv6

Address space

17.2M

IPv4 addresses · 2M IPv6 /48s

RPKI

32% valid

0 invalid · 3,707 without a record

Peering

Open

0 exchanges · 0 facilities

Details

Network

Name
China Education and Research Network Center
Holder
CERNET Helpdesk
Type
Educational/Research
Country
ChinaChina
Registry
APNIC
Registered
Sep 4, 200818 years ago
Website
edu.cn
UsersCloudflare Radar's estimate of people who reach the internet through this network.
About 1.5M
Abuse contact
abuse@cernet.edu.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.
1,757 of 5,464 valid
IncidentsPossible BGP hijacks (high-confidence detections) and route leaks involving this network in the last 30 days, from Cloudflare Radar.
None in 30 days

AS4538 on Cloudflare Radar →PeeringDB →

Largest prefixes

5,464 announcements in all