Data as of Nov 15, 2026
210.40.248.0/24
No anonymizer space · no proxy exits in 30 daysChina Education and Research Network Center · space held by China Education and Research Network
Announced by
Type
Business
Risk
30 / 100 · Medium
Recently moved
Recent change
New origin Sep 18, 2026
from AS138378 CERNET2 regional IX at Yunnan University, after 1.7 years unannounced
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 210.32.0.0/12 since May 2005 | AS4538 | Business | 570 8 always on |
Network & registry
Announced by
Covering announcement 210.40.192.0/18
- Prefix
- 210.40.192.0/18
- Announced by
- AS4538 China Education and Research Network Center
- Type
- Business
- RPKI
- No RPKI
- Netname
- CERNET-CN
- Registrant
- China Education and Research Network
- RIR
- APNIC
Origin network
AS4538
CN
- Name
- China Education and Research Network Center
- Type
- Education
- Registered
- Aug 1, 2002
- Domain
- cernet.edu.cn
- Website
- www.edu.cn
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
210.40.192.0/18
Routing history
- Pattern
- Reactivated
- First seen
- May 2005
- Current origin since
- Sep 18, 2026 · 2 mo
- Origin networks
- 2
- Last change of origin
- Sep 18, 2026
Recorded history
History
- Handoffs
- 6
Whois
Registration for this announcement
- Range
- 210.
40. 0. 0/ 13 - Netname
- CERNET-CN
- Registrant
- China Education and Research Network
- Registrant country
- CN
- Organization
- China Education and Research Network
- Org country
- CN
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Oct 20, 2020
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- CN
- Delegated
- Mar 12, 1997
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cernet. edu. cn - Name
- ABUSE CERNETAP
- Handle
- AC1685-AP